传递: transmit; deliver; pass on; hand down [round; around]; transfer; hand over sth. one after another; transmission; transference; delivery; transmital 短语和例子传递经济信息 transmit economic informatio
摩擦: 1.(互相接触的两物体作来回相对运动) rub; chafe 短语和例子轴颈在轴承面上摩擦。 the journal rubs against the bearing surface.2.[物理学] (相互接触的两物体在接触面上发生阻碍相对运动的现象) friction 短语和例子滚动摩擦 rolling friction; 滑动摩擦 sliding friction; 把