通风。检查一下通风口或调风器，保证没有堵塞的东西。
Ventilation. Check the vents/registers and make sure there is nothing blocking them.
通常情况下，这些通风器会被放置在头盔后面，这样就不会面对爆炸的正面冲击。
Normally these ventilators would be placed behind the helmet so it wouldn't face the brunt of the blast.
焊接电子部件还会产生有害气体，但管理人员拒绝打开通风设备，安全检查人员在场的情况下除外。
The welding of electronics parts also produces toxic gases, but management refuses to turn on the ventilation system, except when safety inspectors are present.
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