词汇	spiral curriculum
释义	spiral curriculum 圆周式课程
随便看	double-effect evaporation doubleeffect evaporator double effect evaporator double-effect evaporator double-effect falling-film evaporation units double-effect forward flow double-effect libr absorption chiller double-edged double-edged effect double edge detection Double edge-detection double-edged eyelid double-edged incising saw double edged knife double-edgedness double-edged praise double-edged reversible flail knife double edge driver double-edged skate double edged sword Double-effect LiBr Absorption Chiller double-effect parallel Double Effects double-edged sword double -edged sword