proportionalit比值, 比例, 相称proportionaladj.成比例的；相称的n.[数]比例项proportional opposition部分对立proportional-integraln.比例积分proportional navigation比例导航proportional propensity比例定势proportional derivative比例微分Proportional Technology电液比例技术proportional power unit比例执行机构proportional tax system比例税制proportional similarity比例相似性proportional allocation比例配置