In the engine, oil is supplied to crankshaft and camshaft journals rotating in their supporting bearings.在发动机里, 机油被供应到旋转在其支承轴内的曲轴和凸轮轴轴颈上.The motion of the rotor can be balanced completely with rotating counterweights att...
The Grand Canal joins the Hai River at Tianjin.大运河在天津和海河汇合。Wait for me where this road joins the main road.在这条路和大路会合的地方等我。Catherine Zeta - Jones joins him as Amelia, a kind flight attendant.凯萨琳?丽塔琼斯则饰演一位名为爱蜜莉亚的亲切空服员.A tr...