这些危险因素都与饲料工业有关。
石化过程工业涉及复杂的系统流程，具有变量多，危险点多的特征。
Petrol-chemical industry has complicated process, many parameters and dangerous points.
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.
工业机器也属职业事故的重要危险源之一。
Industrial machine is also one of the important hazard sources of occupational accident.
工业机器也属职业事故的重要危险源之一。
Industrial machine is also one of the important hazard sources of occupational accident.
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