Check all items in the checklist such as test of content of oxygen test of explosion point exploded-proof lamp good ventilation.
核对检查单并检查所有项目，如测量氧气含量，检验爆炸点，防爆灯和通风。
Check all items in the checklist, such as test of content of oxygen, test of explosion point, exploded-proof lamp, good ventilation.
核对检查单并检查所有项目，如测量氧气含量，检验爆炸点，防爆灯和通风。
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