free chlorine monitor

combustible gas concentration monitor

可燃气体浓度监测仪

airborne particle mass monitor

大气粉尘物质浓度监测仪

Design and Implementation of Soot Density Monitoring Instrument Based on μC/OS-Ⅱ

基于μC/OS-Ⅱ的烟尘浓度监测仪的设计与实现

Continue Monitoring of Methane in Urban Area of Beijing with Laser Absorption Spectroscopy

高灵敏激光吸收光谱仪监测北京城区甲烷浓度变化

The Development of a Monitor for UDMH and Nitrogen Dioxide of High Concentration in Air

空气中高浓度偏二甲肼和二氧化氮监测仪的研制

Reliability and Calibration of Laser Scattering Dust Concentration Meter;

散射法烟尘浓度在线监测仪器的可靠性和标定研究

Calculating the venous blood concentration of inhalation anesthetics with a clinical gas analyzer

利用麻醉气体监护仪床旁测定吸入麻醉药血药浓度

ultrasonic detector for density of mixed fuel

超声波混合燃料浓度检测仪

critical oxygen determinator

临界氧浓度测试仪（耐燃性试验）

The Designing of Gas Thickness Detector Based on Ultrasonic Technology;

基于超声技术的气体浓度检测仪设计

Research and Development of Non-dispersive Infrared CO_2 Gas Concentration Analyzer

红外CO_2气体浓度检测仪的研究与开发

A MSP430F149-Based Acohol Concentration Detector

基于MSP430F149的酒精浓度检测仪的设计

Research of Alcohol Concentration Monitor Base On C8051F040

基于C8051F040酒精浓度测试仪的研究

Based on the principle of NDIR infrared CO concentration detector

基于NDIR原理的红外CO浓度检测仪

A NDIR Based Portable CO_2 Detector

基于NDIR原理的便携式CO_2浓度检测仪

Design of dust measurement device based on EPA

基于EPA通信的粉尘浓度测量仪的设计

Design and Implementation of a Universal Ion Concentration Testing Instrument

通用型离子浓度检测仪的设计与实现

The Concentration of Mathane Monitoring Based on Single Chip Computer;

基于单片机控制的甲烷浓度监控报警仪