Machine operators shall be provided with protective apparatus including ear-muffs and anti-dust aspirators.

同时为机械操作人员配备隔声、防尘的劳动保护用品。

youdao

On gas withdrawal systems, use a check valve or other protective apparatus in any line or piping from the container to prevent reverse flow.

对于气体排出系统，使用止回阀或其它保护性装置以防止回流。

youdao

Before he starts he must put on two sets of protective clothing, four pairs of gloves and a helmet with breathing apparatus, all of which is taped up so that not a particle of skin is exposed.

在他工作之前，他要穿上两套防护服，四双手套，一个带有呼吸系统的安全帽，这所有的一切都是为了把自己规整的实在，确保没有一丁点的皮肤暴露在外。

youdao

Before he starts he must put on two sets of protective clothing, four pairs of gloves and a helmet with breathing apparatus, all of which is taped up so that not a particle of skin is exposed.

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