A pressure blow-off door inside the nose cowl prevents cowl damage by an overpressure. What does"blow-off" mean?
A.爆炸
B.放（排）气
C.吹气
D.击打
正确答案是B
A pressure blow-off door inside the nose cowl prevents cowl damage by an overpressure. What does"blow-off" mean?
A.爆炸
B.放（排）气
C.吹气
D.击打
正确答案是B