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- At the end of the dissertation, the taper roller bearing CAD system was developed. In this software system, the optimal design realized by Synthesized Constrained Dual Descent Method (SCDD), IGA, ISA and GSA is included. 最后开发了圆锥滚子轴承优化设计CAD系统，并将综合约束函数双下降法(SynthesizedConstrained Dual Descent Method简称SCDD法)、改进的遗传算法、改进的模拟退火算法、遗传模拟退火算法实现圆锥滚子轴承优化设计作为系统优化设计主模块底下的四个子模块。
- Here there is a gradual descent to the sea. 这里有个通向海的缓坡。
- There was a descent of temperature after rain. 雨后气温下降了。
- The road opened out into a dual carriageway. 这条路已扩展成了复式车行道。
- He traces his descent back to an old norman family. 他追踪自己的世系上溯至一个古老的诺曼家族。
- Many Americans are of English descent. 许多美国人的祖籍是英国。
- The spectators watched the descent of the balloon. 观看的人瞧著气球降落。
- Melodic ascent and descent of pitch. 旋律的变移声调旋律的上升或下降
- He traces his descent from an old Norman family. 他追溯他的祖先是属于一个古诺曼人家族。
- Such a steep descent in an airplane would have blacked out a fledging. 飞机作这样的急速下降本来是会使缺乏飞行经验的人眼前发黑的。
- dual descent procedure 对偶下降算法
- His dual role as a composer and a conductor made him very busy. 他作曲家和指挥家的双重身份使他非常繁忙。
- The descent down the mountain took nearly two hours. 下山差不多花了两个小时。
- dual descent 双重遗传
- At that point, the road opens out and becomes a dual carriageway. 公路在那个地方变宽了，变成了双车道。
- A person of Hispanic, especially Latin-American, descent. 具有拉丁血统的人西班牙人和葡萄牙人，尤指具有拉丁美洲人的血统的
- The land slopes to the sea by a gradual descent. 陆地逐渐向海边倾斜。
- From the ground, we could see the, plane pull out of its steep descent. 在地面上我们能看到飞机由俯冲变为水平飞行。
- The road makes a sharp descent just past the lake. 那条路刚过湖畔就下了个陡坡。
- Proceeding by descent from an ancestor. 代代相传的从祖先往下传的
