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- gas expansion energy 瓦斯膨胀能
- In the meantime, measuring expansion energy of initial releasing gas of soft coal in Ma jia gou 0521 and absorb constant and remains gas content. 同时,对马家沟矿0521软分层的煤样进行了初始释放瓦斯膨胀能试验及吸附常数和残余瓦斯含量的测定。
- Analyse results show that nicety degree for reflecting coal and gas outburst fatalness of expansion energy in initial released gas is higher than that of general index. 分析结果表明：初始释放瓦斯膨胀能反映煤与瓦斯突出危险性的准确程度要高于综合指标D和K值。
- The polytropic index can be calculated according to the experiment data of coal temperature, the free gas expansion wor. 多变指数可以通过实验测定的煤体温度来计算,吸附瓦斯和游离瓦斯的膨胀功可以利用多变指数计算。
- expansion energy in initial released gas 初始释放瓦斯膨胀能
- It links the piston and crank, piston top face in the role of the gas expansion of the crank to enable the movement to the piston into the rotation of the crank movement. 连杆是柴油机中非常重要的一个部件，它连接了活塞与曲轴，把作用在活塞顶面的气体膨胀的力传给了曲轴，使活塞的往复运动变为了曲轴的旋转运动。
- Using the theory of adiabatic flow of fluid in the pipe and the gas expansion factor, a more rigorous way for calculation of relieving capacity of tube & shell heat exchanger is derived. The calculation results have high accuracy. 运用流体在管道内作绝热流动的理论 ,结合气体膨胀因数 ,推导出一种更为严密的计算管壳式换热器安全阀泄放量的方法 ,其计算结果的精确度较高
- The polytropic index can be calculated according to the experiment data of coal temperature, the free gas expansion work and adsorbed gas work can be calculated using polytropic index. 多变指数可以通过实验测定的煤体温度来计算 ;吸附瓦斯和游离瓦斯的膨胀功可以利用多变指数计算 .
- methane expansion energy initially released 初始释放瓦斯膨胀能
- In tis paper, the effects of the compound use of monocalcium aluminate expansive agent (AEA) andFDN water reducer on their expansion energy and fluidness are studied on the basis of the experiments on the mortarwith AEA and FDN water reducer. 本文以铝酸钙膨胀剂与FDN减水剂的砂浆试验为基础，研究了铝酸钙膨胀剂与减水剂复合使用时对膨胀能、流动度的影响。
- I'll refill my cigarette lighter with gas. 我将给打火机再灌满汽油。
- The gas bubbled to the surface of the water. 气体变成气泡升上水面。
- We are well served with gas in this town. 这个城镇煤气供应得很好。
- He cooks his meal with a gas stove. 他用煤气炉做饭。
- Don't forget to drop by at the gas station. 别忘了到煤气站去看看。
- I was given gas when they pulled my tooth out. 给我拔牙时用了一氧化二氮。
- His long speech was nothing but gas and hot air. 他的长篇大论只是吹牛和空话。
- The gas main explode and set fire to the house. 煤气总管爆炸引起房子失火。
- A whole tankful of gas dropped away because of the tiny leak. 由于这个小小的漏洞，整整一油箱的汽油都漏光了。
- Keywords Ideal coal seam crosscut;methane expansion energy initially released;extrusion;outburst; 理想石门揭煤;初始释放瓦斯膨胀能;压出;突出;
