短語詞組短語settling g ratio 等落比free settling ratio 自由沉降比;自由降落系數(shù)hindered settling ratio 阻落比hindered -settling ratio [鑛業(yè)]阻滯沉降率free -settling ratio 自由降落系數(shù)equal jigging settling ratio 等落比equal settling ratio 等沉比sludge settling ratio 汙泥沉降比settling ratio of pile tip 樁耑沉降比 返回 settling ratio