Differential velocity adherent
GPS differential velocity determination
lateral differential velocity ratio
pump velocity modulation
eccentric sliding vane pump
vane pump
叶片泵
叶轮泵
轮叶泵
叶片油泵
双联叶片泵
垂直泵
变速机构
ratio of pulp velocity and sire velocity
velocity derived from velocity spectrum
conversion for performance of model pump to actual pump
(Nearly) differential charac-teristic set
1-Oil Differential Switch
1-order ordinary differential matrix equation for the state vector
2 5th order differential voltammetry
2e triple differential cross sections