bellowvi.吼叫vt.大声喝道n.吼叫声;风箱,鼓风机,鼓风匣子
bellows sealed gate valve波纹管密封闸门阀
bellows type pressure gage膜盒式压力计
bellows differential gauge波纹管差动压力计
Bellows type pressure gauge膜合压力计
bellows type expansion joint波纹管补偿器
bellows operated pilot valve膜盒控制阀
bellows-type gas flowmeter膜盒式气体流量计,波纹管气体流量计
bellows type mechanical seal[化] 波纹管式机械密封
bellow-type expansion joint波纹管补偿接头