具有

Crown gear coupling can compensate the radial and axial displacement and angular displacement between axes. Its structure is compact. It can transmit motion reliably and accurately and avoid the stress concentration in sharp corner of teeth. So this coupling's carrying power is large.

具有补偿轴线间相对径向位移、轴向位移和角位移的能力，并且结构紧凑，传递运动准确、可靠，能有效地避免齿的尖角应力集中，具有较大的承载能力。

It is applied to cruise missile terrain following. The result shows that the controller exhibits robustness and excellent tracking performance.

在巡航弹地形跟踪应用中的结果表明，该控制系统不仅具有精确的跟踪性能而且具有良好的鲁棒性。

Therefore, the development of a new crystallization technology with independent intellectual property rights and the design of a continuous column crystallizer with high efficiency, have a very important significance.

因此，开发具有自主知识产权的新型结晶分离技术，设计一个高效连续的熔融结晶装置就具有非常重要的意义。

In chapter 1,we find out a kind of two-parameter invariant cubic curve family of a certainquadratic system which is important one for studying the distribution of limit cycles.

第二章讨论一般的二次系统具有三次代数曲线同宿环的充要条件，针对问题，我们采用了具有双曲鞍点的二次系统的标准形，利用仿射坐标变换，我们把系统和曲线同时简化，使问题得到了完满解决。

However, the smoothness and convergence of these methods are not satisfactory. Because cubic spline function can be a piecewise, and its second order derivative is continuous, it is smooth and convergent.

但以上算法的光滑性和收敛性不好，而三次样条函数具有连续的二阶导数，且可采用分段函数的形式，具有很好的光滑性和收敛性。

The character of technical measure is practically, sustainable and environment-friendly, so it is effective measure of controlling the cucumber root knot nematodes disease in the northern area of China.

该技术具有可操作性、可持续性和环境友好型的特点，是控制北方地区温室黄瓜根结线虫病的有效技术措施，具有广阔的应用前景。

Conclusion\ Cuneiform liner is of important application value on the engineering demolition and engineerin...

楔形罩在工程爆破、工程防护技术上具有重要的应用价值，同时对于自锻破片战斗部的设计具有重要的参考和指导意义

In order to gain higher magnetic performance and solve air pollution problems in extraction process of Fe-Cr fibers,cupreous body of Cu-13Fe-2Cr in situ composite materials were corrupted by using chemical extraction .

为解决Fe-Cr纤维提取过程中容易造成空气污染的问题，使得到的纤维具有较高的磁学性能，采用化学萃取法腐蚀掉Cu-13Fe-2Cr原位复合材料中的铜基体，制备了Fe-Cr金属纤维；通过调整硝酸与双氧水比例抑制NO2的产生；通过改变清洗方式使纤维具有较高的磁性。

Fourth, the leadership of Chengdu Metro Company is constituted of 6 persons, and 3 of them have doctor's degree and 2 of them have in master's degree. But modesty and curiousness are their target and pursuance. With a study and modest attitude, Leadership actively absorbed the domestic and overseas constructions′ experience, which lays a strong foundation for Chengdu metro to get good integrated benefits.

第四，成都地铁有限责任公司领导班子共由6人组成，其中3人具有博士学位、2人具有硕士学位，但虚心好学是他们的宗旨和追求，对于国内外同行中的建设经验，公司领导层都是以一种学习、谦虚的态度来积极消化吸收，这为成都地铁能够达到比较好的综合效益奠定了坚实的基础。

Produced sales of more than 10 years of history, the company unswervingly uphold the curtain Stocks product development and development, to today, the curtain has a full product line and become a considerable influence on the system shade curtains Stocks professional firms.

具有十多年制作销售历史，公司始终不渝地坚持窗帘窗饰产品的开拓与发展，到今天，已拥有完整的窗帘系列产品，成为一家具有相当影响力的窗帘窗饰遮阳系统专业公司。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。