氟甲烷

大多数氯氟甲烷存留在平流层下部。

Most of the chlorofluoromethanes reside in the lower stratosphere .

用调谐的TEACO2激光多光子离解三氟甲烷分离氘同位素

Separation of deuterium by multiphoton dissociation of CF H with a tunable TEA CO_2 laser

基于CFD的三氟甲烷灭火系统运行规律研究

Research for Operation Laws of Trifluoromethane Fire-extinguishing System Based on CFD

然而，对三氟甲烷在灭火过程中HF生成量的研究，目前尚缺乏深入有效的理论计算方法；

At present , there is lacking of in-depth insight of HF production in fire extinguishing process with CF3H .

二氟甲烷分子3a1和2b2轨道的电子动量谱

Electron Momentum Spectroscopy of Inner Valence Orbitals 3a_1 and 2b_2 of Methylene Fluoride

CFD理论可以直观地反映流体的流动，为三氟甲烷灭火系统的研究提供了新方法。

CFD theory can directly reflect the fluid flow , which provides a new research way for Trifluoromethane fire extinguishing system .

这一协议是在世界银行框架碳基金（UmbrellaCarbonFacility）的撮合下达成的，它将大幅度减少三氟甲烷（HFC-23）的排放量，其数量相当于减排1亿吨二氧化碳。

The World Bank 's Umbrella Carbon Facility brokered the deal , which will reduce emissions of the gas called HFC-23 by an amount equivalent to100 million tonnes of carbon dioxide .

本论文着重研究以30%的H2O2为氧化剂、2,2,3,3-四氟1-丙醇作溶剂、三氟甲烷磺酸和其它固体酸作催化剂的反应条件下，1-茚酮为反应底物的BV氧化反应。

In this paper , the research object was focused on the B-V oxidation of 1-indanone by using 30 % hydrogen peroxide as oxidant and some liquid and solid acids as catalysts in solvent of 2 , 2 , 3 , 3-tetrafluoro-1-propanol .

使用三氟甲烷和苯的混合气体，利用微波电子回旋共振等离子体增强化学气相沉积法制备了F/C比在011&062之间的αC∶F薄膜。

Amorphous fluorinated carbon (α C ∶ F ) films with F / C ratios between 0.11 and 0.62 are prepared by microwave electron cyclotron resonance plasma enhanced chemical vapor deposition using trifluoromethane ( CHF 3 ) and benzene ( C 6H 6 ) as source gases .

对含二氟甲烷（HFC32）的气体对镁合金熔体表面的保护作用进行了系统研究。

The protection of Mg alloy melt surface by a mixing gas containing difluoromethane was researched systematically .

例如，化工公司杜邦（DuPont）在肯塔基州的工厂每减少1吨二氧化碳排放，就要求消费者支付4美元。这个工厂产生一种强力温室气体三氟甲烷（HFC23）。

For instance , DuPont , the chemicals company , invites consumers to pay $ 4 to eliminate a tonne of carbon dioxide from its plant in Kentucky that produces a potent greenhouse gas called HFC-23 .

用苯（C6H6）和三氟甲烷（CHF3）混合气体作源气体，采用永磁微波电子回旋共振等离子体化学气相沉积（MWECRCVD）技术，制备了氟化非晶碳膜（aC∶F）。

Fluorinated amorphous carbon films ( a C ∶ F ) were deposited by microwave cyclotron resonance plasma chemical vapor deposition ( MWECR CVD ) using benzene ( C 6H 6 ) and trifluoromethane ( CHF 3 ) as source gases .

二氟甲烷在镁合金熔炼保护的研究

Protection of Molten Magnesium Alloys by a Mixing Gas Containing Difluoromethane

红外多光子解离二氯一氟甲烷浓集氘获高浓集系数

IRMPD of Dichloro-Fluoromethane for Enrichment Deuterium obtain high Enrichment Factor

光抽运二氟甲烷激光器光学泵浦的锂分子激光

An Optically Pumped Difluoromethane Laser OPTICALLY PUMPED Li_2 LASER

角度与光散射光抽运二氟甲烷激光器

ANGLE AND LIGHT SCATTERING An Optically Pumped Difluoromethane Laser

黏胶基活性炭纤维对三氯一氟甲烷的吸附性能

Adsorption of CFC-11 on Viscose Rayon-Based Activated Carbon Fiber

氯氟甲烷主要使用在气溶胶喷雾罐和作为冷冻剂。

The chlorofluoromethanes are used principally in aerosol spray cans and as refrigerants .

椭圆偏振光参量的测定光抽运二氟甲烷激光器

Measuring the parameters of the elliptical polarization light An Optically Pumped Difluoromethane Laser

二氯一氟甲烷红外多光子吸收的研究

A Study of Infrared Multiphoton Absorption of Deuterium Freon-21

三氟甲烷灭火剂在管网中流动状态分析

Flow State of HFC-23 Extinguishing Agent in Pipeline

气相合成二氟甲烷的研究进展

Advances in gaseous - phase synthesis of difluoromethane

三氟甲烷在灭火系统中的应用

The Application of Trifluoromethane to Fire Extinguishing System

光抽运二氟甲烷激光与微波振荡源高次谐波的混频实验

An Optically Pumped Difluoromethane Laser Harmonic Mixing Experiments Between Optically Pumped CH_2F_2 Laser Radiations and Microwaves

光抽运二氟甲烷激光器

An Optically Pumped Difluoromethane Laser

综述了二氟甲烷的气相催化合成工艺及其催化剂制备的最新进展；

Latest advances in the gaseous phase catalytic synthesis of difluoromethane and the preparation of catalysts are summarized .

但由于三氟甲烷灭火剂自身性质的特殊性，其在管网中的行为非常复杂，只通过实验很难直观形象地把握其运行规律。

However , due to the specificity of its own nature , its behavior in the pipe network is very complex .

另一种选择是氯二氟甲烷，但它跟臭氧层枯竭有关，已被国际协议限制使用。

Another option was difluorochloromethane but that has been linked to ozone depletion and its use has been restricted by international agreements .

分析结果表明，小型水电站适宜采用三氟甲烷灭火系统，并对某小型水电站发电机组采用三氟甲烷灭火系统进行了工程设计。

The author also puts forward the project design for a small hydroelectric power station to adopt thrifluoromethane fire protection system in this article .

三氟甲烷气体灭火系统是以三氟甲烷为灭火剂的哈龙替代灭火系统，其综合性能良好，是哈龙替代品中最优者之一。

Trifluoromethane Gas fire extinguishing system has an excellent performance , is one kind of Halons alternative fire extinguishing system , so it becomes one of the best Halons alternatives .