"On the right side of the isolation valve, the pneumatic ground service connector joins the right side crossoverduct." In the above sentence, " pneumatic ground service connector" means "气源地面勤务接头"
A.1
正确答案是A
"On the right side of the isolation valve, the pneumatic ground service connector joins the right side crossoverduct." In the above sentence, " pneumatic ground service connector" means "气源地面勤务接头"
A.1
正确答案是A