常見例句雙語例句The products of inertia of the inner or outer gimbal ring may not be equal to zero, if the rings have not been dynamically balanced.如果陀螺儀的內(nèi)環(huán)或外環(huán)沒有經(jīng)過動平衡，就不能認爲它們的慣性積等於零。 返回 outer gimbal ring