proportionaladj.成比例的;相称的n.[数]比例项
proportional sampling比例采样,比例抽样,按比例抽样
proportional expenses比例费用
proportional dividers比例规
proportional reverser比例反向器
proportional coupling比例偶合
proportional compasss比例规
proportional shifting比例偏移
proportional feedback比例反馈,比例回授
Proportional overflow比例溢流阀
proportional division比例除法