短語詞組短語viscosity reducing ratio 降黏率viscosity retention ratio 粘度保留率viscosity density ratio 比密粘度viscosity influence ratio 粘度影響率interfacial viscosity ratio 界面粘度比Certain Viscosity Ratio 具必定粘度比oil viscosity ratio 水油粘度比pressure -viscosity ratio 壓力turbulent viscosity ratio 湍流粘性比;動蕩粘度比率;湍流粘度比 返回 viscosity ratio