查询词典 gas-proof

B works for the manufacture of town gas, substitute natural gas or synthetic natural gas

生产煤气、代用天然气或合成天然气的工厂

The results indicate the mutual effect exists between the single coals, which could increase the maximum of thermal weight loss obviously and has a small effect on the temperature extent of the weight loss. The main pyrolysis production of coal is coke, but the main production of waste plastics is tar; the yield of water became decrease and the gas became increase by adding the waste plastics. And the CRI and CSR decreased with the ratio of waste plastics in coal. The main ingredients of tar from blend coal are aromatic hydrocarbon and alkane, while those of waste plastics are alkane and alkene. The result of co-coking with coal and waste plastics make the light tar and the aromatic hydrocarbon increase obviously. The combustible ingredient(CO、H2、CH4) of gas from co-coking with coal increase at different ratio; Co-coking with coal and waste plastics could increase the combustible ingredient and thermal value of gas.

结果表明，废塑料与煤混合物在煤的塑性温度区间内存在明显的相互作用，使最大热解失重峰迁移，热解速率变大，且随着废塑料配比的增加呈现规律性的变化；煤热解产物固体焦炭为主，而废塑料的热解产物以焦油为主，废塑料的添加使得总体焦炭和水产率下降，焦炉煤气和焦油的产率增加，即共焦化呈现出明显的&增油减水&效应；随着塑料添加量的增加，焦炭热强度呈现劣化趋势；废塑料代替瘦煤配煤炼焦可使其比例提高到3%而不影响焦炭的质量；纯煤焦化所得焦油以芳香烃类和烷烃类为主，而废塑料热解焦油以烷烃和烯烃为主；废塑料配煤炼焦，可使得的焦油呈现&环构化&和&轻质化&趋势；废塑料的添加可使煤气中的可燃组分(CO、H2、CH4)的含量均有不同程度的增加；废塑料配煤炼焦可以优化焦炉煤气的组成，增加煤气中的可燃组分，提高焦炉煤气的热值。

The study shows:(1) the generation of sulphur-bearing gas is controlled by the formation water;(2) the present distribution of hydrogen sulphide is the result of the segregation of water and gas, and it is also influenced by the heterogeneity of reservoirs;(3) the limited distribution of formation water is an important mechanism for forming gas fields of low sulphur content in China.

该问题的研究说明：①靖边气田含硫天然气生成过程始终受地层水控制；②现今硫化氢分布是气水分离结果，并受储层非均质限制；③揭示地层水体分布的局限性可能是形成我国低含硫气田的一个重要机制。

The hot gas duct of China 500 MW Pilot High-Temperature Gas-cooled Reactor connects the reactor pressure vessel and the steam generator. The hot gas duct is the main passage of the helium from the reactor core to the steam generator.

500 MW高温气冷堆示范电站的反应堆压力容器与蒸汽发生器通过热气导管连接，热气导管是反应堆堆芯出口氦气导入蒸汽发生器的主要通道。

Early as in April 2002, MHI signed a "Joint Venture Agreement" with Dong Fang Steam Turbine Works on the joint investment to set up the Mitsubishi Heavy Industries Dongfang Gas Turbine Co., Ltd., a Chinese-foreign joint venture manufacturing heat components on gas turbines and providing after-sale services and maintenance of gas turbines.

早在2002年4月，三菱重工签署了&合资协议&的董筏嗯汽轮机厂联合投资成立的三菱重工东方燃气轮机有限公司，一个中外合资制造业热部件气轮机，并提供售后服务和维修的燃气涡轮机。

The current products are: Yuchai yc6105 gas-locks, Valve Spring Block; Dongfeng Kang Ming Chai period of 6 BT Series Spring Block; Beijing Futian BJ491Q Valve Spring Block; Dongfeng locks in the gas-Chai 6102; dragged on 6105 gas products such as door -.

目前生产的产品有：玉柴yc6105气门锁片、气门弹簧座；东风康明期柴发6BT系列弹簧座；北京福田BJ491Q气门弹簧座；东风朝柴6102气门锁片；一拖6105气门锁片等产品。

In order to understand the effect of sodium dodecyl sulfate on gas hydrate formation, the experiments of gas hydrate formation were conducted using the gas hydrate formation and dissociation system.

为研究钻井液化学成分对天然气水合物的影响作用，利用天然气水合物人工合成实验系统进行了天然气水合物的人工合成实验。

During the opening and shutting-in process of gas well, the gas flowing within the borehole is transient, where the flowing parameters including the pressure and temperature of the gas are the functions of well depth and time.

气井开关井过程中，井筒内气体的流动为瞬变流动，其压力等流动参数是井深和时间的函数。

A series of erosion-corrosion test has been done to J55 steel under the influence of current of gas-liquid phase by indoor self-made devices, and the corrosion mechanism of current of gas-liquid phase to oil pipe's inner surface has been got. The results show that oil pipe's inner surface will be corroded fleetly by liquid medium and corrosion products will form on it. But at the same time, the corrosion products or protective layer will be removed from the inner surface of steel pipes under the alternate impact of high speed gas and liquid flow, and on this bare steel surface corrosion film will form again and be removed again. Thus, by these ways the corrosion is exacerbated. Surface erosion-corrosion failure comes into being with the circulation of this process going on.

本文主要在气液两相流作用条件下，通过室内自制装置，对管材钢J55做了系列冲刷-腐蚀试验，结果表明，气液两相流对钢管内表面冲刷－腐蚀的机理是钢管内表面会受到液体介质的快速腐蚀，生成腐蚀产物，同时钢管金属表面不断被具有高流速的气液相交替地冲击，不断地从金属表面脱去保护膜或腐蚀产物，裸露的钢表面又会被介质快速腐蚀形成腐蚀膜后，再被两相流冲掉，如此反复，造成管内金属表面膜的连续破坏，使腐蚀加剧，最终导致钢铁表面的冲刷腐蚀失效。

A ground system was designed to separate drilling cuttings from gas in gas drilling. The system is composed of two-stage series-wound cyclone separators and two filters. The high-cost drilling gas purified by this system can be recovered and recycled.

根据气体钻井的特点，设计了由两级串联的旋风分离器与两台过滤器组成的气体钻井地面分离系统，对成本较高的气体钻井介质进行回收和循环利用。

The work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。