... urine collector for pediatrics 释义:儿科尿收集器 vapour container 释义:蒸气收集器 collector slit 释义:收集隙缝 ...
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They fill the container with pure air made by evaporating liquid nitrogen and liquid oxygen, and add water vapour and some trace gases.
他们将容器充满由蒸发液态氮和液态氧得到的纯空气,再加入水蒸气和一些痕量气体。
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