您要查找的是不是：
- Ratio方法Fisher ratio method
- Ratio算子Ratio detector
- C／N ratio碳氮比
- G／E ratio粒细胞红细胞比率
- G／N ratio糖氮比率
- P／O ratio磷氧比值
- F-ratio准则F.ratio criterion
- log-ratio算子log-ratio operator
- Ratio值累积法ratio accumulation method
- form ratio (河流)深宽比
- root／shoot ratio根-冠比
- mills ratio米尔比率
- ratio kill (百分率)射杀比例
- agedchild ratio老龄化指数
- glucose／nitrogen ratio糖氮比率
- time scale ratio (模型)时间比尺
- water ratio (混凝土的)水灰比
- lean-to-fat ratio (猪肉)肥瘦比率
- removal ratio (沉砂池的)除砂比
- drag-to-weight ratio (车辆的)拉力与重量之比
