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[多选题]
检查正压式空气呼吸器压力表上的读数值,其值应在()之间
A.20~30MPa
B.25~30MPa
C.28~30MPa
D.30~40MPa
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28~30MPA
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)
A.20~30MPa
B.25~30MPa
C.28~30MPa
D.30~40MPa
28~30MPA
A.检查呼吸器各组部件是否齐全
B.佩戴好全面罩深吸气,观察压力表指针是否波动
C.将空气呼吸器瓶阀向下背在人体的背部
D.将快速接头插好,并连接好供气瓶与全面罩
A.检查呼吸器各组部件是否齐全
B.佩戴好全面罩深吸气,观察压力表指针是否波动
C.将快速接头插好,并连接好供气瓶与全面罩
D.将空气呼吸器瓶阀向下背在人体的背部
A.0.5MPa
B.0.6MPa
C.0.7MPa
D.0.8MPa