反

The second part points out the weakness in the planar graph of Heawood's counter example and also its types by GR graph. It also offers a new type of counter example so as to replace the former one.

第二部分通过GR图对希伍德反例进行了深入的探讨，指出该类型的平面图自身有破绽并给出新的反例类型以取代原反例。

It is a hot research topic to eliminate irrelevant variables from counterexample, to make it easier to be understood.

使用反例压缩算法，从反例中剔除冗余信息，从而使反例易于理解，是目前的研究热点。

This paper analyses effect of corporate culture , intelligence , military affairs to counterintelligence from macroscopic view on the

企业文化、竞争情报、军事情报对反竞争情报活动具有重要影响，因此，企业必须做出反竞争情报文化建设、竞争情报与反竞争情报的整合以及借鉴军事情报技术等策略。

Based on the research and analysis about the developing trend of anti-dumping in European Union and combined with the practice in China, the author analyzes and studies the theme with important theory and practical significance in the aspect of dumping and anti-dumping so as to seek for the effective countermeasures to actively prevent and counterplea the anti-dumping appeal from foreign countries, to strengthen the work of responding to appeal, to raise the emergency ability, to avoid and reduce the loss actively.

本文系统地论述了有关倾销与反倾销的基本问题，并对我国遭受欧盟反倾销的现状、受到的损害以及原因作了深入分析和探讨，力求寻找出能够积极预防和有力抗辩欧盟对我国的反倾销投诉、加强应诉工作、提高应变能力、变被动为主动、避免或减少损失的有效对策。

In Two-Transistor Flyback Converter circuit, a power semiconductor device in Flyback Converting circuit has been replaced by two power semiconductor devices which parallel connected with an ultra-fast diode with soft recovery characteristics. Two-Transistor Flyback Converter can reduce greatly the switching stress of the power switch and does not need to degausser, suitable for high input voltage Switching Power Supply.

反激变换是从Buck-Boost变换演变而来的，将反激变换电路中的单个功率开关管用两个替代，并在每个功率开关管上并联一十箝啦的快恢复二极管而形成的双晶体管反激变换电路，能大大降低功率开关管承受的开关应力，且不需要消磁电路，非常适用于高输入电压的开关电源。

Intracorporeal papaverine injection has been used as an outpatient procedure to assess 40 cases of impotent patients. Fourteen (35%) responded normally; sixteen (40%) has an impaired response, and ten (25%) had no response at all. Priapism occurred in one patient and spontaneous detumescence occurred after aspiration through glans penis.

从民国76年5月至11月，共有40位所谓阳萎症病人接受阴茎海绵体内注射譻粟碱试验(intracorporeal papaverine injection test)，正常反应者14人(35%)，减弱反应者16人(40%)，无反应者10人(35%)，其中1人发生异常持续勃起，经由龟头抽吸阴茎海绵体内的血液后，恢复原状，且仍保有勃起能力。

In this paper,we mainly discuss inverse problems for ellipticpartial differential equations,and parameter inversion and free boundary problemin elliptic equations have been paid much attention to many scientists for a longtime.

我们主要讨论椭圆型偏微分方程中的反问题，而在椭圆型方程的反问题中参数反演及其自由边界问题一直受到人们的关注，本文主要从事这方面研究，全文分为两部分。

Using the domain derivative of the far-field pattern for eddy-current inverse problem with Dirichlet boundary condition,a new algorithm to recover the shape of cracks was constructed and some numerical examples were given.

运用Dirichlet边界条件下涡流检测反演的远场区域导数，构造了反演缺陷形状的一种新算法，并且给出了二维及三维的算例，数值反演的结果与实际缺陷吻合得较好。

The passage tells us the international anti-dumping against our country first, and it has pointed out the problems of our country: enterprise hostile competition; Anti-dumping should not appeal actively to abroad. At the same time, it tells us the reasons of international anti-dumping: the international does not understand competition of Chinese product price; Development of Chinese trade have competed and discomposed between the foreign countries.

本文首先分析了我国面临的国际反倾销的形势，指出了我国自身存在的问题：国内企业恶性竞争；对国外反倾销不积极应诉，同时阐明了国外对华反倾销的原因：国际对中国产品价格竞争力不理解；中国外贸的发展引起竞争国的关注和不安。

Any conclusion made at large to appreciate or depreciate anti-dumping is dogmatical and unbelievable.

欲对反倾销进行经济学分析，尤其是对反倾销行为作出价值判断，必须首先对反倾销所针对的对象——倾销——作出合理的分类及研究，只有这样才能做到有的放矢。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。