常見例句雙語例句Locking head screws will not have optimal fixation if the plate is not sitting over the middle of the bone surface.如果鋼板沒有放在骨界面的中央，鎖定頭螺釘將不能達到最佳的固定。The structure plate is composed of high-elastic structure, which is provided with an edge raised line, a middle raised line, a bottom flat surface and a bottom concave surface.由高彈性結構構成，高彈性結構上設置有邊凸條、中凸 條、底平面、底凹面；ip.com 返回 middle surface of plate