Poisonous gas closed in on the town.
毒气渐渐笼罩了这个小镇。
The old well was filled with poisonous gas.
那口古井里充满毒气。
If (it is) burnt, rubber can give off a poisonous gas.
橡胶如果燃烧起来，会发出有毒气体。
Each place gave out poisonous gas that made people faint.
各地都冒着令人昏眩的毒瓦斯。
Room in which a convict prisoner is executed by poisonous gas.
用毒气将被定罪囚犯处死的房间。
But they also produced what was in their world a poisonous gas-oxygen.
但他们同时也制造了在当时是毒气的气体——氧气。
Many factories allow poisonous gas and smoke to escape into the air.
很多工厂都让毒气和毒烟排放到空气里。
But, unlike any other geyser, this one erupted with a poisonous gas.
但是，这个间歇泉不像其它间歇泉，它喷发的时候毒气也一起冲起来。
The colour comes from a type of carbon and cyanogen, a poisonous gas.
这种颜色来源于一种碳和氰以及一种有毒气体。
Some factories send waste water into river and poisonous gas into the air.
一些工厂往河里排放污水或有毒气体。
Hazard properties: Non-inflammable, emits poisonous gas by high temperature.
受高热分解放出有毒的气体。
This is why shipping regulations require diaphragm valves on most poisonous gas cylinders.
这正是为什么运输规范要求在大多数有毒气体钢瓶上使用隔膜阀的原因。
这种气体有剧毒。
这种气体有剧毒。
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