短語(yǔ)詞組短語(yǔ)weight bulk ratio [物]重量躰積比率weight strength ratio 重量強(qiáng)度比Weight gain ratio 增重率weight measurement ratio 重量躰積比weight distribution ratio 重量分配比weight t ratio 重量比weight gaining ratio 增重率weight mixture ratio 固氣比 返回 weight ratio