挤出机的控制系统主要由电器、仪表和执行机构组成，其主要作用为：控制主、辅机的拖动电机，满足工艺要求所需的转速和功率，并保证主、辅机能协调地运行,控制主、辅机的温度、压力、流量和制品的质量,实现整个机组的自动控制。 以信息家电为代表的互联网时代嵌入式产品，不仅为嵌入式市场展现了美好前景，注入了新的生命；同时也对嵌入式系统技术，特别是软件技术提出新的挑战。这主要包括：支持日趋增长的功能密度、灵活的网络联接、轻便的移动应用和多媒体的信息处理，此外，当然还需对付更加激烈的市场竞争。 嵌入式应用软件的开发需要强大的开发工具和操作系统的支持 随着因特网技术的成熟、带宽的提高，ICP和ASP在网上提供的信息内容日趋丰富、应用项目多种多样，像电话手机、电话座机及电冰箱、微波炉等嵌入式电子设备的功能不再单一，电气结构也更为复杂。为了满足应用功能的升级，设计师们一方面采用更强大的嵌入式处理器如32位、64位RISC芯片或信号处理器DSP增强处理能力； 使之排列总是按照时间由小到大、由远至近的顺序。报表打印功能模块：完成每日、五日以及月报表的打印。系统设定模块：主要用于完成对整个系统的显示设置和安全手段设置。考虑到在进行历史曲线显示时的不同要求及系统安全性，设置了曲线显示时间间隔设定及密码设定。这样使得历史曲线显示既可以以小时为单位显示30天内任意连续24小时的数据，又可以以天为单位显示365天内任意连续30天的历史曲线。 PMD2412PTB1-A 这种U/F=C称比例控制方式的变频器属第一代产品（目前还有矢量电压控制，矢量转矩控制）但在低频运行时≤20HZ ,φM跟随F下降要减少的,性能要变差。频率下降<50HG属恒功率特性，下限F≮20HZ时为好，否则MM要下降，通风变差，电动机出力要减少，不能正常运行。频率上升 >50HZ属恒功率特性，当F>FH时，要考虑电动机机械强度是否许可，轴承能否承受高速运转，绝缘强度是否允许。若UI >UH，这是最好按V/，F=C控制方式。

9BAM12P2J06 设置增益增益设置有助于提高变送器的采样分辨率，在有量程迁移或其它小信号传感器(如：扩散硅传感器、陶瓷压阻传感器等)特别有用，通过增益设置可以改变CPU内部放大倍数，使可采集的数据范围更大，操作如下：单击[调试/增益设置]菜单，在出现的窗口中选择好传感器，并输入传感器的零点压力和满点压力，以及量程迁移后的4mA压力和20mA压力，然后点击[==>]按钮，系统会自动计算出迁移后的放大倍数、迁移比、及CPU内部的一些参数，然后点击[传送数据]按钮即可。PMD2412PTB1-A 但随着人们对CPU性能需求的增加，处理器的功耗也日益增加。最新的Intel LGA775架构的P4处理器最大功耗居然在100W以上。工控机内部的散热问题也变得日益严峻起来。研华公司针对此问题，不断的在自身的产品上做出改进。这是第一代的IPC610系列机箱中的高端产品IPC－610BP－F，由于这款机箱设计时CPU的功耗问题并不突出，因此其仅采用了单风扇辅助散热设计。

A03B-0801-C104 BB-M40.6P-V21Z8 C20-MC22C GB1206PHV1-AY CIMR-HB4A0024FAA Fujita traction sheave Fujita elevator traction sheave 410 * 6 * 10 Fujita elevator accessory traction sheave

MR-50L,MR-20L,MR-20NSB,MR-20LW 140ACI04000 FU-A05D SGMGH-1ADCA6H-OY ASS-256GC-24-050-00 ESDA-20B EV2100-4T0220A G3M-202P-UTU-12VDC MR-PWS1CBL03M-A1-L FX2N-232BD SL1-AK MSMA021C37 M6GA36B SKKD701/18 ABB SD802F PY0A015A1G91P01 CIMR-E7B4022 Toshiba Door Lock Left Door Lock Elevator Door Lock Elevator Accessories CV 55.60

A16B-2202-0435 BHB-M1205P-V11F2-120 G3NA-205B-UTU AD1224HX-A71GL JUSP-WSCA15AA 星玛门刀MD-门刀星玛电梯门刀货梯门刀三菱电梯门刀Otis门刀

A16B-1212-022 CB-M1023P-C11P2 G3PX-240EHN RDL5015S CIMR-AA2A0021FAA Otis Brake Brake DZD 1 - 500 Giant KONE Elevator Brake Holding Brake DZD 1 - 653

A860-0315-T101 JSDEP-20A H7CX-A4D 4715FS-23T-B50 CIMR-R5A4030 Car door hook lock car door lock PB 307 elevator car door lock opener hook lock hook lock

A860-2162-V202 BFB-M1202P-V11S12-S EE-SXSX672A WFB1212HE SGDV-2R8A11A Mitsubishi Elevator Boots Lining Mitsubishi Counterweight Boots Lining Toshiba Elevator Boots Lining Hollow Rail Boots YA014 B 847

A20B-2100-0160 VELCONIC VLBSG-XA20K20 VLBSG-A33K20 VLBSG-B55K20 CQM1-IPS01 德国papst 4656ZWH Taiwan Dongyuan Inverter 7200 GS Series Main Board CPU Board Amway Door Knife Elevator Door Knife Amway Door Knife Assembly Amway Door Knife Assembly

A16B-2200-0956 2711P-T10C10D2 FU-88 SGMGH-75ACA21 OVW2-0032-2HC JSDEP-15A EV2100-4T0055 CT CP1W-AD041 FR-A7AP FR-D720S-0.4K CX-491 MSMA041C1N M8GA10XB SKKE15/08 F930GOT-BWD-C L730T-012EL8 PMD1207PKB1-A CIMR-F7B2037 Sanyo boots lining sanyo elevator boots lining oriental boots lining oriental elevator boots lining elevator accessories elevator boots lining

A02B-0210-B501,21T, 21M， VLASV-200P3-HX 电眼槽型EE-SX672 BUB0512HHD ETC604301-S0023 Fujita traction machine brake shoe Jinchun traction machine brake shoe 38F - 011 Fujita elevator traction machine brake shoe

A50L-0001-0314 1747-KY1 KM13-1S R48-2000 TS5667N502 PK564 MDFKARS100-22 G6B-47B HF-SP702K F2-40BL C25TC0UA2200 MMD3A3P1A M9GC75R SEMiX453GB12E4HDs 7MBR100U4B-120 C200H-RM201 D05X-12TS SGMGH-09DCA6F-0Y 富士达导靴富士达电梯导靴富士达电梯配件富士达电梯导靴总成

A16B-2200-0360/03A BB-M50.8P-V21Z8 CPM2C-24EDTC 4710NL-05W-B49 SGMG-30A2ABB 佛马特钩子锁佛马特门锁蒂森门锁蒂森钩子锁蒂森电梯钩子锁

A03B-0819-C154 FM18-L15MD-C54P2 SR83-1I-N-90-1000000 2410ML-05W-B60-EQ5 ETX003720 Elevator forced door closing tension spring elevator door tension spring Schindler elevator door torsion spring elevator door closing tension spring

A06B-6127-H110 BFB-M3010P-V21S12 E3MC-X11 4710NL-05W-B49 ACS550-01-015A-4 MHMJ082G1U XGC-E102 PG-B3 FM12-R1N-P31P2-F 三木CS-06-33N E3Z-B61 PFXGE4408WADGC-4408W HF-SP81 HPA-E11 MHMA102P1C 三菱电机E502SCG MT6050i 2.22E+13 Modern stair treads 645 B 028 H 02645 B 028 H 01 Modern stair warning stripes modern yellow border

A20B-1004-0070 FQ50-L25MD-P31P2 G7L-2A-P 4715MS-10T-B50-B00 HC-BP0136D-S1 通力梯级链条通力链条通力扶梯梯级链条通力扶梯配件梯级链条

A06B-6059-H003 2711P-T12C4D8 EZ-12M高质量 R88M-U2K030H-S1 NOC-S20-2MWT A06B-0031-B077 TDB-4C01-03001 CS1W-三菱电机21 BN030C704 M57962L ZIP-12 HP800-T1L MMD5A3P1E M9GC12.5B SKM200GB176D Allen-Bradley模块 1794-IB16 67ZA030A573SH0 AFB123822H SGMJV-01A3A21 平层感应器平层光电YG-1电梯平层感应器平层感应器感应器

A20B-2002-032 JSDEP-50A3 E3F3-D62 KDE1205PFV1 SGMG-30ASRAB Extended KM 713700 g 11 display panel KM 853300 g 03 km 853300 g 01 km 853300 g 11

A06B-0202-B400 BB-M50.8P-V21P2 C200H-NC211 C34736-55 ACS800-01-0025/0030-3驱动板RINT5411C全新原装 MSMD012G1V SV055iP5A-4N CM200DXD-12A CB-M3020P-P11P3 SY3220-5LZE-M5 E3F3-T11 AGP3600-T1-D24-FN1M FX3U-48MR-DS FL2-7D6S-901 MSD013A1XXF MHME352G1S MT8050I MT506SV45WV Changshu Canon Traction Wheel Canon Traction Wheel Elevator Accessories 550 * 4 * 13550 * 5 * 13

A20B-2002-0521 BFB-M1805P-V11P2-S G7S-4A2B RLF35-8/14N NBRA-657C ECMA-C30910PS SV015iG5A-2 ETC710801 FM18-L15MD-C54P2 E2-2P5-H1N E3T-ST11 PFXGP3750TAD FX3GA-24MR-CM HD-CAAU00 MSMA3AZA1A 三菱电机E102GCH MT508TV 欧姆龙旋转编码器 E6B2-CW26C 2000P/R 日立门滑块日立电梯门滑块LG电梯门滑块广日电梯门滑块门导靴

A16B-3200-0231 BN-H6.504P-V21S8-S 20BM060FXP5J A33999-55 SGMAH-04AAA41 Toshiba ladder Toshiba aluminum alloy ladder Toshiba ladder Toshiba ladder accessories Toshiba aluminum ladder

A06B-6114-H209 1756-M08SE LR-ZB100N EDU01 47HB13Z12D50HB-35 C8413-9012K EV-ECD01-4T075G EV-ECD03-4T075G 日立电梯/电梯 G4D-212P-MS HA-FH23CY-S5 A2NCPUR21-S1 6LS1-JSDU10T0100 MSMA012C48 M71X15SV4Y SKM145GB126D 欧派克BSM150GT120DN2 R88A-PR02U ME92251V2-000C-G99 SGDP-08BP Tongrun traction sheave Changshu Tongrun traction sheave elevator traction sheave Tongrun traction sheave 620 * 6 * 12

A20B-3300-063 Mitsubishi Contactor S - N12 Contactor Elevator Contactor Elevator Accessories Mitsubishi Elevator Contactor G2R-1-E G2R-2

A20B-0008-0630 Roller guide shoe roller elevator roller guide shoe wheel elevator guide shoe roller Mitsubishi roller guide shoe wheel K2CU-F20A-F

A20B-3900-0180 Xingma step frame LG step frame Xingma stainless steel step frame LG frame DSA 3000583 H8PS-8A H8PS-8AF

A16B-1010-0150/06A Elevator Rubber Pad Elevator Traction Machine Rubber Pad 1 Hole Square Rubber Pad Elevator Traction Machine Rubber Pad CJ1W-ETN21

A06B-6134-K203发那科FANUC原装插头 Otis roller guide shoe wheel Otis elevator roller guide shoe wheel Otis guide shoe roller guide shoe roller G9SB-200-B

1784-SD2 F3SP53-4S LBA-25S-3PC TS5213N530 PK545-NAC-C29 主板CPU 8221MP.AF.16 MYA-LA12 MR-J4-10A MR-J4 C20DA00101 MSMA011A44 MDDHT3530E02 SKM75GB12V SMC气缸MXS12-30 Mitsubishi contactor SD - N21 contactor elevator contactor elevator accessories Mitsubishi elevator contactor E3S-AD11

A20B-3300-0260 电梯中分变频开门机电梯开门机三菱电梯变频开门机电梯配件 CP1H-X40DT

A20B-3300-0084 日立梯级1200EX日立不锈钢梯级日立扶梯梯级1000型 120齿 30度 G3PA-220B-VD

A16B-1212-0901/09A Schindler Triangle Lock Key Mitsubishi Triangle Lock Key Elevator Triangle Lock Key Otis Triangle Lock Key SR23-DLII-060005G

A20B-2902-0290 日立电梯三角锁GZPB2三角锁日立三角锁广日三角锁电梯外开锁 SR91-8V-90-150

A20B-9001-0780 Otis靴衬Otis电梯靴衬Otis电梯衬板Otis电梯对重靴衬电梯配件 C200H-APS01

A06B-0153-B075 Otis Floor Sensor SSGD - 1L ( NC ) Otis Elevator Floor Sensor XAA 177D B1 T730T-012EL8N

A860-2020-T361 Elevator Compensation Chain Full Plastic Compensation Chain Elevator Balance Compensation Chain Elevator Full Plastic Compensation Chain P30B08075DXD500G

A16B-1200-0041.01A Elevator cargo elevator auxiliary door lock meal ladder door lock contact sundry ladder door lock switch vegetable ladder door lock contact C200H C200H-OD219

A860-0346-T111 Otis step tread h 2106212 h 2106224 Otis step frame Otis step tread frame E75C-MB302C27F

A16B-3200-0190 崇友门轮崇友电梯门轮崇友电梯层门轮崇友电梯厅门轮东芝门轮 E3F3-D11

A16B-1212-0221 Kone board ke 0713700 g 11 PY0A100A0PD1P00

A06B-0031-B177 Elevator door rubber mat elevator door rubber bean Toshiba elevator door rubber bean elevator floor door shockproof rubber mat door rubber bean G4C-112P-E

A06B-1445-B203 东芝CV55电梯开关门继电器MM4XP继电器继电器电梯继电器MM4XP E2E-X2D1-M3G

A20B-3300-0091 Modern traction sheave modern elevator traction sheave elevator traction sheave modern elevator accessories 755 * 6 * 12 SR94-8Y-N-90-1000

A06B-0215-B605 东芝滚轮导靴RG-90SHNL90-4东芝电梯滚轮导靴5P6KB024P012 PMAPA1S6A01

A06B-6117-H303 Travel switch xck - p elevator switch x2 - n elevator accessories xck - p switch x2 - n switch P50B07020PXS22

FR-SGJ-2-7.5K Emergency lighting power supply for elevators CG 0921703091219 XL - YD12 emergency lighting power supply EE-SX670-WR

A06B-6079-h106 Otis Escalator Rubber Pad Otis Escalator Rubber Pad Otis Escalator Damping Pad Otis Escalator Accessories SR3-6P-1C

A03B-0819-C114 Schindler boot Schindler elevator boot Schindler elevator boot liner Schindler boot liner CQM1-OD213

A20B-0008-0620/14G Kone Door Wheel Toshiba Door Wheel Kone Elevator Door Wheel Toshiba Elevator Door Wheel Toshiba Elevator Floor Door Hanging Wheel 光纤放大器E3X-NA11

A06B-0146-b177 Fuji contactor sh - 4 contactor elevator contactor elevator accessories C9SB-2002-A

A20B-8101-0281 Otis梯级Otis不锈钢梯级奥的斯扶梯梯级Otis扶梯配件TJ1000ZX PAC15P

DLP75-24-1(TDK-LAMBDA) 蒙特纳利曳引轮蒙特纳利大轮曳引轮蒙特纳利电梯配件650*6*13 热销槽型U型E3Z-G82

A20B-2001-0590 西安电梯门滑块西安电梯门导靴门滑块门导靴西安门滑块导靴 P50B07040DXS0E

A16B-1212-0901 Elevator Compensation Chain Full Plastic Compensation Chain Elevator Balance Compensation Chain Elevator Full Plastic Compensation Chain E32-D61-S

A16B-2200-0040 行程开关ZVB236-11Z电梯开关电梯配件电梯行程开关ZVB231-11 E3T-ST22

A06B-0032-B175 Otis托轮Otis扶梯扶手带托轮Otis托带轮Otis扶梯配件Otis托轮 DRT2-ID08-1

A20B-2101-035 KONE Door Wheels KONE Elevator Door Wheels KONE Door Hanging Wheels KONE Elevator Hall Door Hanging Wheels KONE Door Wheels 94 3G2NJ-32EDR

A20B-3900-0052 Elevator door rubber mat elevator door rubber bean Toshiba elevator door rubber bean elevator floor door shockproof rubber mat door rubber bean C200H-TC002

A20B-2902-0371 迅达300P绳头橡胶垫迅达电梯轿底橡胶缓冲垫迅达电梯绳头缓冲垫 E3JK-5DM2

A20B-2001-0190 KONE Elevator Roller Guide Shoe Wheel KONE Roller Guide Shoe Roller KONE Guide Shoe Wheel Guide Shoe Roller ZX-LD30V

A06B-0202-B400 Toshiba oil seal Toshiba elevator traction machine oil seal Shinda traction machine oil seal Shinda oil seal elevator oil seal P60B13100HX800

A20B-2002-0080 Mitsubishi button Toshiba button CS - 41 - GG Fujita button HSA 6000 AKA 111 Y 817 HRRI SR83-1I-N-90-11660000

A20B-2902-0272 Shenyang elevator three-in-one boot liner Shenyang elevator boot liner Shenyang three-in-one liner 210 elevator accessories G8P-1A4P-LAE

1747-UIC KM11-2T M500S M94C5U11 TS5641N151 PK564-B EVS93CPU G5D-2242T HF-SP301 MT6100iV3，10.4寸 C15TROLD0300 MSM5AZP38 M8MA25GT4C SEMiX404GB12E4HDs FP10R12NT3 FP15R12NT3

1768-L45 EH-114 SGDV-470A01A TRD-2TH2500B ASD30A-A EV1000-4T0055GF SRT2-OD16-1 HC-H52S FR-F740-5.5K-CHT FT-Z30 MMD5A3P1A MX6G3.6M SKD31/18 两块AGDR-71C

TSTE20/CTSB13551A

CN-H3425A-P14P2

1746-NIO4I F3XP01-0H HD4820-2 TS2651N131E78 PK266M-02A EVD4904-E=55A H3Y-4 DC2 GT15-QBUS与Q基板连接线,20米,需搭配A9GT-Q三菱电机 GT11-50BAT C24MTR0LA1000M001 MUMA012A24H M71X15GV4GGA SKM400GARL066D DDB6U104N16RR英飞凌全新

1756-L55M13 GT2系列电缆线配件GT2-CH2M UTOPH -600WC NOC-S5000-2MHT A16B-3200-0190 EV2000-4T2000P GT1-BSC02 36310-3200-008 CM75DU-24F HPX-ET2 MSM011A1E M9GC120B SKD75GAL123D16L2 SUNX光电开关 GD-10 (GD10P+10D)

BHN-M5020P-V11F3-230EXT

1794-IE8H E2S-W25 PSM-B9 TRD-2T1000V SD5107P2 EV2000-4T0055G(5.5KW) GD-212P MDS-A-SVJ-03 TK6070IK LCB-801 MSM5AZP1H M9GA36B SKKH172/14E 伦茨变频器E82EV113K4C200

GFB0412VHF

TOEI VLPST-X025P-XX VELCONIC东荣TOEI

BB-H6.502N-V21S8-S

VELCONIC VLBSV-30030-B VELCONIC VLBSV-45030-B

VELCONIC东荣 VLPSX-008P2 1φ200～230V/0.25kVA 200W

1756-L55M22 PZ-V33 SGMGH-55ACA21 OVW2-18-2MHC TSC06201C-3NT3-A EV5000-4T1320G-T1CT C200H-OC225 16 HF104BS-A48 GT1575-STBA HPA-E21 MQMA041C1P M7GA5M SKIIP83ANB15T4 三菱电机PLC-FP2-C1---X32D2--XY64D2T--Y32T一套

CN-H3425A-P24S12

BB-Q2802P-P11P2/T

5920PL-07W-B49

1794-IE8H E2S-W25 PSM-B9 TRD-2T1000V SD5107P2 EV2000-4T0055G(5.5KW) GD-212P MDS-A-SVJ-03 TK6070IK LCB-801 MSM5AZP1H M9GA36B SKKH172/14E 伦茨变频器E82EV113K4C200

BHN-M1808P-V11SI2-150

1769-L33ERM LV-S62 GIE4815-5A-4.25KW-X1 (OIH100-1024C/T-P2-12V) UDK5114N TD1000-4T0037G G3NE-210T HA-FF43G1 FX2N-64MR-ES/UL VCL-5101-K MSMA021S1H M9RX40SK4YGA MCC26/14IO1B 亚德客电磁阀3V210-08 220V

BN-H6.504P-V21S12

BB-M1805P-C11S12-S

IC697ALG230 LX2-01 JZSP-CVP02-03-E OEK-360-2HC A06B-0115-B855#0048 EV2000-4T0185G LK202 MR-JHSCBL3M-H CM400DY-12HE 燃烧安全控制器R4780C MGMA062A1C M9RZ90GV4LGA SKIIP83AHB15T3

 ETP712492

 SGMAV-01ADAB1

 SGMSH-20AC编码器

 SGDR-SDA710A01BY29

 SGM-08AW12

 JZSP-CMP01-05-E

 SBC-4096-6MD

 SGMP-08A3NT21

 SGMGH-13DCA6C

 CIMR-G7B4045

D06A-12TS1

 JZSP-CMP10-15

 SGMGV-13ADC61

FM18-T015A-P14S12
1756-TBS6H SJ-M030V CIMR-AB4A0103AAA E6B2-CWZ1X 600P/R 0.5M A02B-0259-B501 TD2100-4T0450S SRT2-1D16 QJ71PB93D PM400DVA-060 阀门定位器AVP300-RSD3A MSMA022A48 M9RZ90GV4GGA SKKH250/14E
ACS800IGBT+驱动板FS450R12KE3/AGDR-71C/81C PXR5TAY1-FV000-A SV075DBU-4 ETP710263 BHN-M3015P-V11F2-150 C200H-DA004 EE-SX672 SR3-6Y-1C FX3G-60MT-ES-A FL7S-1W6W-CN03 MSM022C2G MHME402G1C eMT3070A/B 西门子PLC 电源 6ES7 307-1KA02-0AA0
BB-H6.502N-V21P2
BHB-M1202N-V11F2-120
CIMR-F7B2018
TSC06201C-2NT3
CIMR-V7AA21P5 

ETC618046-S1036 ETC618046-S3032
VELCONIC东荣TOEI VLNBE-150P-XP
BN-M1808C-C11P2
CIMR-G7A42P2
BN-M1816P-C31P2
1756-RM E3V-7C43S 码器UTSIH-B17CK 适用于 HES-36-2MD 8CB75-2DE7H EV2000-4T0150G CS1W-三菱电机11 MR-三菱电机BL5M-H A2NCPU-S1 BZ-2RQ3000-T4-JK MUMA012A1A M71A15GD4L SKIIP25NAB066V1 许继西继西门子电梯轿内厅外呼显示板SM5000-02B预定
CIMR-F7B2075
BN-H6.502N-V11S8
1746-R14 LV-N11N HM48S27/1800 TS5207N310 UPH599-A 电源驱动板F3452GM2/GM1-TD3000 G4J-2242T HA-FF23G1 SA-10.2A （10.2寸） VCL-5003 MBDCT1507 M71X10GV4Y SKM145GAL128D ABB ACS800 ACS600操作面板 CDP312R
SGDA-A5BN
TSC06401C-3NT3-A
Main board
CN-H6.502N-V11P2
BFN-M1204U-V15P2
SGMPH-01A1A4C
1764-MM1RTC AUTONICS CT-02 连接线 PSM-B4 TRD-2T2500BF ASD16A-S EV800-2S0002G G5D-2242T-US HA80NT-E30 OSE10 14CE6-5J MUMA021A54L M8MX25G4CGA SKD146/16/L75 prolink 苹果 1394b线1394 800 400/1394连接线9-6火线800+1394b
ETC618871-S8162
1746-F1 EM-030 EPW20-48A TS5207N510 CSK244-BP EMF2102IBV00 G3SD-Z0-PD HC-PQ13B-UE A1SD778M C46A1A2C000000 MSM302A1D M7GA12.5M SEMIX703GB126HDS CM100TU-24F 询 CM50TU-24F
FQ50-R10MD-P31P2
VELCONIC东荣 东芝BS VLBSV-ZA00530 50W/0.159Nm 3000/5000rpm
BB-H6.503N-V21P2
BN-H6.506P-V11S12-S
BHB-M1202P-V11F3-220EXT
SGDS-02A01A
CIMR-F7B4300

PMD2412PTB1-A 从２０００年８月份的上海数控机床展览会和２００１年４月北京国际机床展览会上，也可以看到多品种产品的繁荣景象。但也反映了下列问题，低技术水平的产品竞争激烈，互相靠压价促销，高技术水平、全功能产品主要靠进口，配套的高质量功能部件、数控系统附件主要靠进口，应用技术水平较低，联网技术没有完全推广使用，自行开发能力较差。， 随着工业化的发展，有毒有害气体已经成为我们在生产和生活中不得面对的危险来源。包括石化企业、化工行业、环保应急事故、恐怖袭击、危险品储运、垃圾填埋乃至城市污水处理、各类地下管线等等各个方面，我们可能在不知不觉中就会受到危险气体的威胁。以人为本的观念需要我们随时随地关心我们的健康和安全，各类泄漏爆炸又不断造成社会危机和公共财产的破坏。