午夜无码十八禁在线观看_黄色软件抖阴_高清露脸对白啪啪_国产午夜亚洲精品不卡网站_伊人中文字幕无码久久综合_女18一级大黄毛片免费女人_国产亚洲香蕉视频中文字一区二区_綜合精品自拍亂倫_国产超薄肉丝袜视频在线观看_男人的天堂亚洲无码

Industrial ventilation

Column:Industrial ventilation Time:2018-11-16
shared:

Ventilation works:

Ventilation engineering is a general term for air supply, exhaust, dust removal, pneumatic conveying and smoke prevention and exhaust system engineering

Design requirements:

The ventilation system is simple, the air flow is stable, easy to manage and has the ability to resist the disaster

When an accident occurs, the air flow is easy to control and personnel are easy to withdraw

Has the operation environment and the safety monitoring system or the inspection measure which conforms to the regulations

Ventilation system infrastructure investors, low operating costs, comprehensive economic benefits