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Fraction of Photosynthetically Active Radiation is a key parameter in the study of such topics as ecological system function and global changes, and hence it is important to estimate FPAR accurately.

光合有效辐射分量(Fraction of Photosynthetically Active Radiation，FPAR)是进行生态系统功能和全球变化研究的重要参数，准确估算FPAR具有重要意义。

Objective: To study the protective effect and mechanism of PUC (Compound of Phyllanthus urinaria,PUC) on experimental liver injury in mice.

目的：研究复方叶下珠（Compound of Phyllanthus urinaria ，PUC）对实验性肝损伤的保护作用及其机制。

This, at any rate, is roughly the criterion for inclusion in noted science writer Clifford Pickover's latest book, Archimedes to Hawking: Laws of Science and the Great Minds Behind Them.

无论如何，这大致上就是著名科学作家Clifford Pickover新著 Archimedes to Hawking： Laws of Science and the Great Minds Behind Them（从阿基米德到霍金：科学定律及其背后伟大的心灵）中列入定律的评判标准。

Methods for synthesizing of pinacol are reviewed,the difference of catalytic effects and stereoselectivity with various catalytic systems are introduced in this paper.Highlights are laid on the mechanism and stereoselectivity of new synthetic methods catalyzed by low valent Samarium, Titanium and Trimethyl chlorosilane, etc.

频哪醇合成新进展* The Recent Progress in the Synthesis of Pinacol 李有桂蒋昌盛尤田耙**(中国科学技术大学化学系合肥 230026)本文综述了合成频哪醇的方法，介绍了不同催化体系的催化效果和立体选择性的差异，着重介绍了低价钐、低价钛、三甲基氯硅烷等新的合成频哪醇反应的机理和立体选择性。

Scientifie thought,as an épistémè,is strange to our culture but we Chinese have to construct our society today by means of the result of scientific thought.

论文关键词科学思想史/社会历史责任the history of scientific thought；social and historic duty，论文来源自然辩证法研究，论文单位京，点击次数 11，论文页数 63～67页2000年2000月论文网 http：//www.lw23.com/paper_88195831/我们的文化对于作为一种认识形态的科学思想具有一种先天的陌生，而我们这个民族却又不得不求助于这种思想的成果来构造我们现今的社会。

Carmen Rosa, whose real name is Polonia Ana Choque Silvestre, leads the Goddesses of the Ring, a group of women wrestlers who split off from the Titans of the Ring.

Carmen Rosa&，真实姓名是Polonia Ana Choque Silvestre，领导着Goddesses of the Ring，一个从&摔跤台上的巨人中分离出来的女摔跤手组织。

By the coordination capability, it ispossible to design syntheses of new polynuclear clusters.

此结论从理论上解释了实验中观察到的Of与〓-O均有较强配位能力的现象。

Objective To analysis the predisposing factor of polypoid lesions of gallbladder.

目的 分析胆囊息肉样病变(polypoid lesions of gallbladder，PLG)的易感因素，提高对该病的认识。

In the August 2000 issue of Game Developer ("The Future of Game AI"), author Dave Pottinger states,"So far, no one has proffered a simple solution for pathing in true 3D while taking into account such things as turn radius and other movement restrictions," and goes on to describe some of the "fakes" that are commonly done.

在2000年8月发行的《Game Developer》-&The Future of Game AI&一文的作者大卫·波廷厄说道，&到目前为止，还没有一个游戏提供为在真实的3D 寻路的简单方案，以解决转向范围及其它移动限制的问题，&接着他又描述了一些&假货&。

Objective:To provide anatomic basis for precaution and treatment of the massive hemorrhage of venous plexus of presacral region in Mile's operation.

摘 要：目的：研究骶前区静脉丛(Venous plexus of presacral region，VPPSR)的解剖学特点，为骶前区静脉破裂大出血的防治提供解剖学基础。

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。