燃气中H2S是一种带臭味的无色气体，燃烧时可生成一种有毒物SO 2，使用前必须先将其脱除。
In the fuel gas H2S is one kind of fetid odor colorless gas, when burning may produce virulent SO2, so It is necessary removing H2S from coal-gas before use.
点火器生成的高温燃气通过对流方式向推进剂传热。
The hot gas produced by the igniter transfers heat to the propellant by convection.
首次利用LISP语言开发了燃气管网水力计算图自动生成程序。
The program, which is used to draw the waterpower calculation drawing in gas networks automatically, is written in LISP language for the first time.
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