contactorn.电流接触器；开关contactn.接触；联系；熟人v.(与)联系；(与)接触adj.接触的Contact-impact接触碰撞contact to earth接地合闸,与地相接contacting tower接触塔contact response接触应答contact bleeding接触渗移contact positive接触晒印正片contact manifold切触流形contact ellipses接触椭圆contact-clausen.接触子句contact friction外摩擦,接触摩擦