ratioless无比率
ration.比率;比例
ratio of grain to straw谷草比
ratio of solidification凝固分率
ratio of U-to-Total铀相对比值
Ratio of decreased area而积减少率
ratioof catalyst to oil剂油比
ratios of female flower雌雄比例
ratio of width to depth宽深比
ratio of window to wall窗墙比
ratio of indirect wages[经] 间接工资的比率
ratio of height to span高跨比