Respirators were not designed to fit children.
呼吸防护口罩不是给儿童设计的。
The primitive respirators of the time saved his life.
那时候原始呼吸机挽救了他的生命。
Two of the babies have been placed on the respirators.
其中两个婴儿放上了呼吸器。
Adjust her position and repeat twice more to get the other respirators.
调整自己的立场，并重复两次以上，以获得其他呼吸器。
Respirators are not recommended for children or people who have facial hair.
呼吸器不建议给儿童使用，面部有毛发的人也不建议使用。
They breathe through uncomfortable respirators or carry heavy oxygen tanks on their backs.
他们或通过防毒面罩，或携带沉重的氧气瓶进行呼吸。
For greatest effectiveness respirators need to be worn before and during the entire exposure period.
最有效的呼吸防护需要在有暴露以前佩戴防护口罩。
For greatest effectiveness respirators need to be worn before and during the entire exposure period.
最有效的呼吸防护需要在有暴露以前佩戴防护口罩。
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