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- According to which, many kinds of important surfaces can be structured. As one of the applications in transmission area, the principle of Bertrand conjugating surface is studied. 作为白川德曲面在高副传动领域的应用与延伸，论文研究了白川德共轭曲面的基本原理，在此基础上研究了覆盖各种传动形式的法向圆弧齿轮传动的一般原理。
- Nowadays,Intelligent Shift control of AMT is the direction of development and research within the automatic transmission area,and how to gain reliable information of car is the key factor of achieving this object. AMT智能换档控制是当今自动变速器发展和研究的方向,如何获取可靠的车辆信息是其实现的关键。
- Rural areas have been worst hit by the strike. 受罢工影响最严重的是乡村地区。
- A 4-speed automatic transmission is optional. 四段自动变速器是可自由选择的。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Our army had liberated many occupied areas. 我们的军队解放了许多地区。
- The disease occurs most frequently in rural areas. 那疾病多见於农村地区。
- A means of one-way transmission. 单向传输的一种手段。
- Riots broke out in several areas. 有几个地方发生了骚乱。
- Most tropical areas have rainy and dry seasons. 大多数热带地区有雨季和旱季。
- The restricted areas are marked by orange pennons. 不对公众开放的地区由橘黄色三角旗标了出来。
- Relief was flown to the flood-hit areas. 救济物品被空运到洪水泛滥区。
- Disease transmission by direct or indirect contact. 接触传染通过直接或间接接触来传播的疾病
- There is hunger in all the flood-hit areas. 洪水泛滥地区到处都出现了饥荒。
- The low gear configuration of a transmission. 低速齿轮传动的低速齿轮构造
- Soho is one of London's more disreputable areas. 索霍区是伦敦名声较差的街区。
- Vast areas of land have become desert. 广大的地区均已变成沙漠。
- A region remote from urban areas; backcountry. 腹地远离城区的地区，偏僻地区
- More food and drugs have been hurried to the flooded areas. 已赶紧向水灾灾区送去了更多的食品和药品。
- Winter is the best time for hunting in mountain areas. 冬季是山区狩猎的最佳时间。
