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1·He went online and ordered a gas mask.

于是，他上网订购了一套防毒面具。

2·But he also liked wearing a gas mask while doing so.

但他也喜欢骑车的同时带一个防毒面具。

3·This gas mask can immunize you against poison gas.

防毒面具能使你免遭毒气袭击。

4·Always use a gas mask when risking exposure to ammonia!

当直接接触氨时候一定要带防毒面具！

5·Plus gas mask and new Valentine's Day bandanna for all characters.

另外防毒面具和新情人的所有字符日手帕。

6·He kept out deadly fumes wearing his own gas mask and sucked water from a lava tube.

他带着防毒面具将浓烟雾挡住，从熔岩管中吸水喝。

7·The part of a gas mask that contains the filter for removing toxic agents from the air.

滤毒罐防毒面具的一部分，含有过滤装置，能将有毒成分从空气中除去。

8·This method has provided a basis for studying the adsorption kinetics of gas mask canisters.

本方法为滤毒罐吸附动力学的研究奠定了基础。

9·The utility model provides a gas mask for operating personnel who works with harmful substance.

本实用新型提供了一种用于从事有害物质作业人员的防毒面罩。

10·In a gas mask designed to guard against a biological threat, a very fine particulate filter is useful.

预防生物威胁时，优良的微粒过滤器对防毒面具非常有用。