单词	嘉宁
释义	同嘉宁--夏拉
随便看	back player back pointer back point lay ing back point laying back pollination back porch backporch current back porch effect back-porch effect back porch period back power back power-- astern power back power; astern power back pressure backpressure back pressure curve back pressure engine back pressure evaporation back pressure factor back pressure[hydraulic] back-pressure manometer back pressure multi-effect evaporator back pressure of chamber back pressure[pneumatic] back pressure regulator