短語詞組短語travel velocity -ratio 行程速比velocity -ratio coefficient 速比系數(shù)Maxwell Velocity Distribution Ratio 麥克斯韋速度分布率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