单词	Rayleigh beacon
释义	Rayleigh beacon 瑞利信标
随便看	water pumping test water pumping treatment water pumping works water pump inlet hose clamp water pump jointing machine water pump lock ring water pump lubricant water-pump lubricant water pump lubricator water pump motor water pump of mould water pump oiler water pump outlet fitting water pump outlet pipe water pump outlet valve flange gasket water pump packing water pump plier water pump pliers water pump pliers set water pump propeller water pump pulley Water pump pulley water pump pulley and fan Water Pump Pulley Bolts water pump running