trace gas

用法例句

Measurement of atmospheric trace gases by spectroscopic and chemical techniques;

大气痕量气体测量的光谱学和化学技术

Remote sensing plays an important role in understanding the tropospheric atmospheric chemistry and the source and sink of green house gases for its ability of monitoring the distributions of trace gases and their dynamic change in global scale.

利用遥感监测全球尺度上的痕量气体分布以及动态变化,对于理解对流层大气化学以及温室气体的源与汇具有重要的意义。

The continuous field measurement of some trace gases on the surface air was conducted at Shangdianzi Regional Background Station(117°07′E,40°39′N,293.

9 m)开展了对大气中痕量气体的连续在线监测,获得了NO、NO2、SO2、CO和O3等气体组分的变化特征、变化规律和浓度水平。

Selected ion flow tube mass spectrometry(SIFT-MS) is a powerful combination of the fast flow tube technique, chemical ionisation using selected precursor ions H_3O+, NO+ and O~2+ etc, and quantitative mass spectrometry that allows on-line, real time quantitative analysis of the trace gases (such as ethanol, acetaldehyde, ammonia, acetone and isoprene etc.

介绍了选择离子流动管(SIFT)技术、SIFTMS的分析方法及其物理和离子化学基础、SIFTMS在不同领域的痕量气体分析中的应用。

The influences of the various preliminary agents,protease and TG enzyme on the wool anti-felting performance,wool fiber damage and fabric strength were discussed in this paper.

文章探讨了不同前处理剂、蛋白酶和TG酶对羊毛织物抗毡缩性能及对纤维损伤和织物强力等的影响。

Wool fabrics were finished with TG enzyme in order to decrease the damage of wool resulting from anti-felting treatment with protease.

为了减少羊毛蛋白酶防毡缩造成的损伤,应用TG酶对羊毛织物进行整理,研究TG酶对羊毛损伤的修复作用。

The kinetics of formation of ZnSe nanocrystals from the complex ZnSe(C2H8N2) has been investigated by means of non isothermal TG DTG at various heating rates of 5.

用非等温TG-DTG技术,在5。

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

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

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

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。

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

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

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

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

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

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

Catalytic Spectrophotometric System for Determination of Trace-level Aluminium (Ⅲ) and Ultratrace-level Copper (Ⅱ);

靛蓝胭脂红体系催化光度法测定痕量铝和超痕量铜

DNA Genetyping of the Trace Bloodstains on the Adsorbent Object;

吸附性载体上微量血痕的DNA分型

Catalytic Solid Substrate-room Temperature Phosphorescence Method for Determination of Trace Selenium

催化固体基质室温燐光法测定痕量硒

Determination of Trace Aluminium by Air-acetylene Flame Atomic Absorption Spectrometry

空气—乙炔火焰原子吸收光谱法测定痕量铝

Determination of Trace Amounts of Copper by Flow Injection Vapor Generation AAS

流动注射蒸气发生原子吸收光谱测定痕量铜

The trace analysis of arsenic in oil cracking gas phase products by cold atomic fluorescence method

石油裂解气相产物中痕量砷的冷原子荧光分析

Study on the Method of Rapid Test for Trace Heavy Metals in the Air of Workplaces

工作场所空气中痕量重金属速测方法的研究

Determination of trace cadmium in natural water by double aqueous phase gas floatation spectrophotometry

双水相气浮浮选光度法测定天然水中痕量镉