单词	alpha period
释义	alpha period 阿伐周期
随便看	spiral pattern of apertures spiral pattern of change spiral patterns spiral-phase antenna spiral phase plate spiral phyllotax spiral phyllotaxis spiral phyllotaxy spiral picker spiral pin spiral pipe spiral pipe flow spiral pipe flow generator spiral pipe type evaporator Spiral Pitch spiral planetary speed reducer spiral plate spiral plate exchanger spiral-plate exchanger spiral plate haeat exhanger spiralplate heat exchanger spiral plate heat exchanger Spiral plate heat-exchanger spiral-plate heat exchanger spiral plates