短語(yǔ)詞組短語(yǔ)travel velocity -ratio 行程速比velocity -ratio coefficient 速比系數(shù)Maxwell Velocity Distribution Ratio 麥尅斯韋速度分佈率velocity transmission ratio 速度傳動(dòng)比angular velocity Tight ratio 角速比velocity adjustment ratio 調(diào)速比velocity y ratio 速度比Velocity distance ratio 速度距離比 返回 velocity ratio