downward displacement 中文意思是什麼
downward displacement
解釋
向下排代- downward : adj. 1. 下方的,向下的，低下的。2. 下降的；下坡的；（市價）下跌的。adv. ＝ downwards. adv. -ly ,-ness n.
- displacement : n 1 轉位，移動；取代，置換；（人的）流離失所。2 撤換，免職。3 【機械工程】（活塞）排氣量；【航海...
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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，使下頜空間位置發生變化；下頜的順時針旋轉將造成面下1 3長度增大；上、下頜前牙發生牙性代償的掩飾作用。 -
Combined with that the influence of the prestressed tendon layout on mechanics characteristic of three - span prestressed concrete deck arch bridge is taken into account in these methods, and demand of internal force and displacement in design is satisfied by using upward and downward eccentric layout of prestressed tendon
這些設計法針對該類橋型的特點，利用在拱頂梁中分別布置一定數量的上下偏心的預應力筋來優化結構的內力和滿足各部分的位移限制要求。
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