safety ventilation of drying oven 烘干室安全通风
Safety ventilation requirements 安全通风要求
safety ventilation management 安全通风管理
Ventilation and safety 通风安全学 ; 通风安全
Mine Ventilation And Safety 矿井通风与安全
Safety subatmospheric pressure ventilation system 安全负压通风系统
Safety y ventilation 安全通风
mine ventilation safety 矿井通风安全
To ensure safety ventilation, it should be installed on the Windows of rotary ventilation devices, poor ventilation in a room should be the installation of a new air ventilation devices.
为了保证安全通风，应该安装有上旋通风装置的窗户，通风不好的房间应该安装新风换气装置。
The welding of electronics parts also produces toxic gases, but management refuses to turn on the ventilation system, except when safety inspectors are present.
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。
Ventilation It is very important for the safety of the applicator that good ventilation be provided to all portions of the area.
通风作业区的各个部位保持良好的通风对操作人员的安全是非常重要的。
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