其中

Indirect-method is an important method in artificial proof, and reduction to absurdity is one of the effective methods.

在手工证明几何问题的方法中，间接证明也是一种重要的方法，其中反证法是较为有效的方法之一。

Main parts of aesthetics as beauty and loftiness, ugliness and absurdness don't preexist alone but are formed at the same time with aesthetic activities.

柏拉图就有很多对话录，其中有一些对话录里边就谈到了美的问题。在对话录中，他借用他的老师苏格拉底之口来阐发自己的观点。

We won ' t go over the Tk widgets in detail as there is plenty of good docu- mentation available on them, either from the Tkinter topics page at the main Python Web site or the abundant number of Tcl/Tk printed and online resources (some of which are available in Appendix B).

我们不准备对所有Tk组件一一详细讲解，因为已经有许多关于它们的很好的文章可供参考--不论是从Python网站的Tkinter主题页面还是数量可观的Tcl/Tk印刷品，抑或是在线资源（其中一些可以在附录B中找到）。

We won't go over the Tk widgets in detail as there is plenty of good docu- mentation available on them, either from the Tkinter topics page at the main Python Web site or the abundant number of Tcl/Tk printed and online resources (some of which are available in Appendix B).

我们不准备对所有Tk组件都一一详细讲解，因为已经有许多关于它们的很好的文章可供参考--不论是从Python网站的Tkinter主题页面还是数量可观的Tcl/Tk印刷品，抑或是在线资源（其中一些可以在附录B中找到）。

The background survey and tracking survey of artificial reef area in Chenghai Laiwu were carried out before and after reefing in 2003 and 2007, respectively. The results indicated that after the deployment of artificial reefs, the biomass density of fishery resources increased by 25.63 times, which were much higher than before. The resources species was much more abundant; total number increased from 23 to 41, which increased by 0.78 times. The crab resources sharply increased by 1.75 times after artificial reef were deployed. Harpodon nehereus and Portunus sanguinolentus , which did not appeared in background survey, now became the dominant species in tracking survey. There were high diversity indexes in artificial reefs area and control area in tracking survey. In conclusion, the results indicated that the fish-aggregating effect of artificial reef site has improved a lot, and the community structure and the habitat environment have been significantly improved.

摘 要：2003和2007年分别对澄海莱芜人工鱼礁区进行了投礁前的本底调查和投礁后的跟踪调查，结果表明，投礁后礁区海域游泳生物的资源密度明显比投礁前高，增加了25.63倍；礁区海域各类资源种类均比投礁前丰富，总种数由投礁前的23种增加至41种，比投礁前增加了0.78倍，其中，蟹类种数增加最多，增加了1.75倍；在本底调查中没有出现的经济种类龙头鱼 Harpodon nehereus 和红星梭子蟹 Portunus sanguinolentus 在跟踪调查中已成为主要优势种；Shannon-Wienver多样性指数在礁区和对比区均比投礁前有所增加。

Protected area is situated in the North-South climate, flora, fauna intersection transition Qinling mountains, there are abundant, a large number of rare and endangered plant and animal species, biological diversity, which included in the national class Ⅰ protected animals giant panda, takin, Lin musk deer, leopard, golden eagles and other five kinds; included in the national Class Ⅱ protected animals have black bear, Chrysolophus pictus, blood pheasant, Syrmaticus reevesii, goral, giant salamander, such as 11 kinds.

保护区地处我国南北气候、植物区系、动物区系交汇过渡的秦岭山脉，蕴藏着种类丰富、数量众多的珍稀濒危动植物物种，生物多样性丰富，其中列入国家保护的Ⅰ类动物有大熊猫、羚牛、林麝、金钱豹、金雕等5种；列入国家Ⅱ类保护动物有黑熊、红腹锦鸡、血雉、白冠长尾雉、斑羚、大鲵等11种。

Acacia their debris, flying to the universe, of which two, falling into the hands of the Earth.

他们的相思的碎片，向宇宙中飞散，其中的两块，落入地球。

Our corporation owns more than 1500 senior executives and special technicians, among them there are 84 first-class project managers, 127 secondary project managers, 98 persons with senior professional title, 461 persons with academic title of middle rank and 621 persons with junior professional title. It holds a large number of professional labor teams and skilled persons.

公司拥有中高级经营管理人员和各类专业技术人员1500多人，其中一级项目经理 84人、二级项目经理127人，高级职称98人、中级职称461人、初级职称621人；拥有一大批长期合作的专业劳务队伍和技能型人才。

To design of high performance MRIgradient and RF coils is always the hot topic in MRI academical and industry field and lots ofmethods have been proposed to design the coils,which needs certain numerical calculation.

高性能MRI梯度和射频线圈的设计一直是MRI学术界和工业界的研究热点问题，已经有大量线圈设计方法提出，其中都涉及到一定的数值计算。

One of the main reasons I chose Rose-Hulman is because of what they offer academically.

其中主要原因之一是因为 Rose-Hulman 的学术。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐