常見例句雙語例句Methods The states of forces sustained by arcus plantaris were analysed and calculated, according to the mechanism of quadratic parabolic arch.方法采用二次拋物拱的原理來分析和計(jì)算足部縱弓的受力狀態(tài)。However, it is restricted in application owing to the lack of a sound theory about the calculation of force of the parabolic oblique arch bridge.但對(duì)拋物線斜板拱橋的受力計(jì)算尚無成熟理論，使之應(yīng)用受到限制。We have argued that Asian conversations show a pattern which can be described as a parabolic arch, beginning with incidental topics and minor points. The main topic is introduced somewhat later.亞洲人的談話方式可以描述為一個(gè)拱形，開始的時(shí)候談?wù)撘恍┍容^隨意的話題，然后再引入主題。edu.sina.com.cn 返回 parabolic arch