Thus for non - coincident nodes , a special reference coordinate system is available termed a uniaxial reference coordinate system 因此,對于非一致性的節點,通常要使用單軸參考坐標系。
The velocity of the grid cell boundary was added into the governing equations and no source term appeared because the reference coordinate system was the inertial one 流動計算采用慣性坐標系作為參考系,這樣控制方程沒有出現由坐標系旋轉帶來的源項。
At first , this article establishes the reference coordinate system and the moving axes , gives the system description method of the parallel robot under these two coordinate systems , and defines the structure parameter of the parallel robot 首先,本文建立參考坐標系和運動坐標系,給出并聯機器人在這兩個坐標系下的系統描述方法,并且定義了并聯機器人的結構參數。