HYC120正压呼吸器(重庆)当瓶内压力在3~20MPa时,定量供氧阀能确保流量稳定在范围内[ ]范围内。( );
A.1.0L/min~1.2L/min; B.1.3L/min~1.5L/min; C.1.5L/min~1.9L/min; D.1.6L/min~2.0in正确答案C
HYC120正压呼吸器(重庆)当瓶内压力在3~20MPa时,定量供氧阀能确保流量稳定在范围内[ ]范围内。( );
A.1.0L/min~1.2L/min; B.1.3L/min~1.5L/min; C.1.5L/min~1.9L/min; D.1.6L/min~2.0in正确答案C
