例句與造句

1. in addition to forward and backward rotation, center of rotation and rotation angle in certain procedures can be set up
   除向前和向后旋轉以外，旋轉中心點和旋轉角度在某種程序上可設置。
2. when swinging drive mechanical operation, such as the rotation speed of the force to make efforts axial shaft before and backward rotation and enable higher plane
   當搖擺傳動機械運作時，等速度的旋轉入力軸使出力軸向前和向后旋轉，并使平面升高。
3. result : the midfacial complex was displaced anteriorly, forward growth of mandible was restricted; the mandible exhibited a downward and backward rotation; an significant increase was showed on the lower facial height; the class incisor relationship was corrected by anterior displacement of the upper incisors and posterior displacement of the lower incisors
   結果：上頜向前移位改良生長量，下頜的向前生長受到抑制；下頜以髁突為中心向下、后旋轉，使下頜空間位置發(fā)生變化；下頜的順時針旋轉將造成面下13長度增大；上、下頜前牙發(fā)生牙性代償的掩飾作用。
4. It's difficult to find backward rotation in a sentence. 用backward rotation造句挺難的