And, although you think that nitrogen, I mean, it's an inert gas.
尽管你认为那是氮气，我的意思是，它是一种惰性气体。
Nitrogen is an essential food for plants.
氮是植物一种必不可少的养分。
An explanation given was a nitrogen narcotic affect.
一个解释是氮醉效应。
And nitrogen is one of those and in fact it's an essential nutrient.
氮就是这些物质之一，事实上它是一种主要的营养物质。
Nitrates are compounds that contain nitrogen, an element essential for life.
硝酸盐中含有氮，而氮是维持生命的必要元素。
Always use an external source of nitrogen or air for this purpose.
做类似事情时，只能用氮气或空气作为外在气源。
Evacuate the equipment and break vacuum with an inert gas, such as nitrogen.
对设备抽真空，然后充入不活泼气体，如氮。
Evacuate the equipment and break vacuum with an inert gas, such as nitrogen.
对设备抽真空，然后充入不活泼气体，如氮。
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