1.
Study on Atmospheric Trace Gas Measurements Using Zenith-sky Scattered Light-DOAS Technique;
利用天顶散射光-DOAS方法测量大气痕量气体研究
2.
LED Illuminant-Based Detection of Trace NO_2 Gases
基于LED光源痕量二氧化氮气体的检测
3.
NF3 is a colorless gas. Trace quantities of impurities can impart a musty or pungent odor to the gas.)
NF3是无色气体。痕量的杂质会使气体带有一种霉味或刺激性气味。
4.
The Study of Near-infrared Photoacoustic Spectroscopy and Trace Detection Technology of CH4
甲烷气体近红外光声光谱及痕量探测技术研究
5.
Impacts of Air Parcel Transport on the Concentrations of Trace Gases at Regional Background Stations
输送对区域本底站痕量气体浓度的影响
6.
testing methods for determination of trace components in diluent gas and zero gas
稀释气及零气中痕量组分测定法
7.
Determination of Trace As and Se in Complex Matrix Sample by Inductively Coupled Plasma-Mass Spectrometry with O_2 Collision/Reaction Cell
等离子体质谱-氧气碰撞池技术测定复杂基体样品中痕量砷和硒
8.
Sample Matrix-Assisted Photo-Induced Chemical Vapor Generation Atomic Fluorescence Spectrometric Determination of Mercury in Wine or Liquor Samples;
样品基体辅助光诱导化学蒸气发生原子荧光法测定酒中的痕量汞
9.
Determination of trace penylethylene in water with bromide derivatization and gas chromatography
溴化衍生气相色谱法测定环境水体中痕量苯乙烯
10.
Tritium is radioactive and is believed to be the main source of the major traces of 3He found in the atmosphere.
氚是放射性的，并且确信是大气中痕量3He的主要来源。
11.
Study on Variation of Trace Volatile Organic Compounds in the Atmosphere of Beijing
北京大气中痕量挥发性有机污染物的浓度变化研究
12.
Preliminary Study of Atmospheric Trace-level Halocarbons Related to Global Changes in the Pearl River Delta;
珠江三角洲地区大气中与全球变化相关的痕量卤代烃的初步研究
13.
DETERMINATION OF TRACE PB, CD, CU AND ZN IN THE ATMOSPHERIC PARTICULATES BY FAAS COUPLED WITH ULTRASONIC LEACHING AND CHISTOSAN ENRICHMENT
大气颗粒物中痕量铅镉铜锌同时分离测定的直接火焰原子法
14.
Pollution characteristics of bromine and iodine as trace element in atmospheric particles in Shanghai Caohejing region
上海市漕河泾地区大气颗粒物中痕量元素溴、碘的污染特征
15.
Determination of Trace Freon F-12 by 5A Molecular Sieve Adsorption Gas Chromatography
5A分子筛气相色谱法测定痕量CFC12
16.
A New Trace Impurity Gas Chromatography Analysis Method for SF_6 New Gas and Recommended Standard of SF_6 New Gas for Electric Power Industry
SF_6新气痕量杂质气相色谱分析新方法与电力行业SF_6新气推荐标准
17.
tracheobronchial cicatricial stricture
气管支气管瘢痕狭窄
18.
column content of ozone
大气气柱中的臭氧含量