词汇	沙蛇
释义	沙蛇医sand viper
随便看	center of mass motion center-of-mass space center of mass system center-of-mass system center of mass theorem center-of-mass velocity center of mean distance center of measurement center of measuremet center of medical earth center of military history center of moment center of moments center of momentum coordinate system center-of-momentum coordinate system center of momentum frame center of momentum framecm center of momentum system center-of-momentum system center of motion center of movement Center of Naval Analysis Center of new area center of normal curvature center of offshore RMB transactions