查询词典 gas-mask

The Gascat GIPS/GDPS Series of Automatic Shutoff Valves are used as the main safety device for transmission, distribution and measurement of natural gas or LPG gas system protection, and for non-corrosive gas systems in general.

Gascat GIPS ﹝升压感应关断型﹞与 GDPS ﹝降压感应关断型﹞系列自动关断阀适用於天然气或液化石油气之输送、配气与计量系统，还有一般无腐蚀瓦斯气体系统保护的主要安全设施。

Considering the current state of gas drainage in goafs of highly gassy mine in China, the "draining while mining" gas drainage method during open region movement behind working faces was emphasized to raise the resource recovery, decrease atmosphere pollution and implement gas control.

针对我国高瓦斯矿井采空区瓦斯抽放的现状，强调了在工作面后方&边采边抽&的开区移动瓦斯抽放方法，以提高资源回收减少大气污染与瓦斯治理的双重效益。

While analyzing the gas-well performance , it must consider the continuity of comprehensive process of natural gas from gas bed to ground.

进行气井动态分析时，必须考虑到天然气从气层到地面这一综合流程的连续性。

CNPC Southwest Engineering Branch formerly the Survey and Design Institute of Sichuan oil, gas industry is the guiding design of Class A units, national mega projects west-east gas pipeline project design unit, is China's first natural gas in the ground survey and design and construction Scientific research units.

中油工程设计西南分公司前身为四川石油勘察设计研究院，是天然气行业指导性甲级设计单位、国家特大型工程西气东输管道工程主要设计单位，是我国最早从事天然气地面建设勘察设计及科学研究的单位。

Gas molecules move freely among one another. The result is gas molecules diffuse from high-pressure area toward low-pressure area. The process is called gas diffusion.

气体分子不停的进行着无定向的运动，其结果是气体分子从分压高处向分压低处发生净转移，这一过程称为气体扩散。

Because of its unexampled advantages such as less floor area covering, high-pressure capability and transport facilitates, Spherical pressure vessels (hereinafter referred to as the"storage tank") used for storage of gas and liquefied gas more widely than other storage tanks in the oil, chemical, city gas, metallurgy and other fields.

北京工业大学，机械设计及理论，2009年，博士

Optimization of the programme after the programme, the combination of study and the requirements of domestic and international examples of high-sulphur gas dehydration technology status quo, recommended high-sulphur gas zeolite moisture absorption regeneration programme as a high sulphur content of natural gas dehydration technology programmes.

对优化后的方案进行方案比较，结合研究实例的要求和国内外高含硫天然气脱水技术现状，推荐采用高含硫天然气分子筛吸附法湿气再生方案作为高含硫天然气脱水的工艺方案。

It analyses the current situation of the petrol car and fuel's production, purchase tax, road maintenance cost, tail gas supervision, the petrol car retrieve, and puts forward the suggestions of further improvement, it founds different purchase tax and fuel tax, in order to set up a controlling petrol car's tail gas legal system to reduce the petrol car's tail gas and avoid the air pollution and fuel consumption, encourages the development of small displacement petrol car and clean automobile, finally to structure a harmony and developing society and achieve the mankind's continuous development.

对现行的汽油车和燃油生产状况，购置税现状，养路费现状以及交通、尾气排放监管、汽油车报废和回收等进行分析，提出进一步依法改进和完善的建议，并创设了差别汽油车购置税、燃油税等依法控制手段，以期建立一个系统、有效的控制汽油车尾气排放的法律制度，达到减少汽油车尾气排放量的目的，从而减少大气污染，减少燃油消耗，鼓励小排量汽油车和清洁汽车的开发和研制，最终构建一个和谐、有序发展的社会，实现全人类的可持续发展。

The industrial method for making hydrogen are:(1) Water electrolysis, with nickel plating 15% of the iron electrode electrolytic potassium hydroxide solution;(2) from natural gas or liquefied petroleum gas system for hydrogen cracking;(3) water gas law, namely the system of hydrogen from coke or anthracite.

氢气的工业制法主要有：（1）水的电解，用镀镍铁电极电解15％的氢氧化钾水溶液；（2）从天然气或裂解石油气制氢气；（3）水煤气法，即从焦煤或白煤制氢气。

Maximum gap of the joint between the two parts of the interior chamber of a test apparatus which,when the internal gas mixture is ignited and under specified conditions,prevents ignition of the external gas mixture through a 25 mm long joint,for all concentrations of the tested gas or vapour in air.

测试设备内室两部分之间连接部的最大间距，当内部气体在指定条件下点燃时，它能在所有测试气体或空气中蒸汽的浓度下，阻止经由25mm长的间接部引起的外部混合气体的着火。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。