Machine operators shall be provided with protectiveapparatus 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。
2
On gas withdrawal systems, use a check valve or other protectiveapparatus 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。
3
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.