标题:
Air in pneumatics
描述:
Air is the term used for the gas mixture in the earth's atmosphere.The two gases nitrogen and oxygen alone make up a total of approx. 99% (approx. 78 and 21% respectively). The rest is mainly argon and traces of other gases.In its natural state, ...
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标题 版本
Air in pneumatics
Luft in der Pneumatik