以下为句子列表：
英文: Consider a space station where air must be manufactured at great cost: charging each breather per liter of air may be fair, but wearing the metered gas mask all day and all night is intolerable even if everyone can afford to pay the air bill.
中文: 设想在一个需要昂贵费用制造空气的太空站里：向呼吸者收取每升空气的费用是合理的，但是如果必须整日整夜地配戴计量呼吸量的面具，那将是无法忍受的，即使能够支付空气账单。
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英文: Cotton masks, protective glasses and gas mask should be provided for laborers working in conditions of health-harming gas, steam or dust.
中文: 在有危害健康的气体，蒸汽或者粉尘的场所操作的工人，工厂应分别供给口罩，防护眼镜和防毒面具。
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英文: He was also wearing a military gas mask that had the filter canister removed and a rubber hose attached in its place.
中文: 他也戴了一个过滤器被移掉的军事防毒面具，面具上附有一个橡皮水管接口。
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英文: The part of a gas mask that contains the filter for removing toxic agents from the air.
中文: 滤毒罐防毒面具的一部分，含有过滤装置，能将有毒成分从空气中除去
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英文: Upon arrival, the Lieutenant was wearing his gas mask and immediately drove to the staging area and assessed the situation.
中文: 一经到达，队长便头戴防毒面具，立即开车进入待命区域，并评估现场状况。
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