短語詞組短語joint t lever 連接桿joint angle lever 曲桿knee joint lever 膝關節(jié)挺子toggle joint lever 肘節(jié)桿joint -bar lever 連接桿master cylinder lever joint 主動側關節(jié)throttle lever latch joint 節(jié)流桿彈鍵螺栓hinge and lever frame joint 鉸接杠桿式車架鉸接 返回 joint lever