bellows-contact 吊钟接触...hand bellows 手风箱...bellows n.风箱手风箱;皮老虎;波纹管...bellows type mechanical seal 波纹管式机械密封...funicular bellows sound 脐带杂音...rubber bellows 橡皮风箱...foot bellows 脚风箱...seal bellows 密封波纹管...bellows valve 波纹管阀...bellows seal 波纹管式密封...bellows accentuated 风箱状杂音...bellows sound 风箱音(心内膜杂音)...bellows expansion joint 波形膨胀接头...bellows contact 折摺式簧片触点...bellows meter 波纹管式压力计...pneumatic bellows 压气风箱...
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