操作液压锤时,须佩戴护耳、护目和呼吸保护设备。
When operating the breaker you must use ear protection, eye protection, and breathing protection.
研究人员指出,虽然他们带有呼吸面具和其他保护设备,但是通常会在离火事不远处将设备摘除。
Though they wear breathing apparatus and other protective equipment while fighting fires, researchers point out, they typically remove the gear when they're merely in the vicinity of the fire.
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