在那个阶段，制氧工作在生产中发挥了很大的作用。
In that phase, aborning of the job that make oxygen produced very big effect.
空分装置的安全运行是工业制氧安全生产的关键环节，也是最难控制的危险源。
Operation safety of the air separation unit is the key link in the production of oxygen, which is a risk source of most difficult to control.
空分装置的安全运行是工业制氧安全生产的关键环节，也是最难控制的危险源。
Operation safety of the air separation unit is the key link in the production of oxygen, which is a risk source of most difficult to control.
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