percentagen.百分率；比例；部分；好处percentage watercut含水率percentage contract按百分比收费合同percentage sampling百分比抽样percentage coupling耦合度百分数percentage of voids空隙百分率percentage addition百分数附加percentage recovery[经] 采收率, 回采率percentage humidity百分湿度,湿度百分数percentage overflow溢出百分比percentage of shock休克百分比