外来性

Since the 1990s , most literature on predicting weediness or invasiveness of plants has focused on the characteristics of the plant , or on the invaded environment .

20世纪90年代以来，关于植物入侵争论的焦点集中于入侵植物本身的生物学特点或入侵生境特点，然而，争议多于结论，至今未能找出有效预测外来植物入侵性的答案。

Shestov thinks over the problem of existence of human beings outside reason. Though Shestov's thought is extreme and unilateral, nowadays it still is somewhat edificatory that he reveals the tragic nature of human beings.

舍斯托夫是站在理性之外来考察人的存在问题，他的思想带有极端性、片面性，但他对人的悲剧性的揭示在今天仍然具有一定的启迪意义。

Future studies are recommended to compare the impacts across multiple scales and multiple ecosystems; intensify mechanical studies of the impacts; link the impacts on biodiversity and ecosystem processes; and explore the mutualistic interactions between soil ecosystems and exotic plants.

今后，加强多尺度和多生态系统的比较研究、机制性研究、生物多样性和生态系统过程的整合性研究及土壤生态系统对植物入侵的反馈研究是评价外来植物入侵对土壤生态系统影响的发展趋势。

To solve the nonlinear attitude control problem of a class of spacecrafts, the strongly coupled dynamics model is decomposed into some subsystems and the coupling between the subsystems, unmodelled dynamics and exterior disturbances are regarded as the uncertainty of the system.

引 言空间飞行器的姿态控制系统是一个具有参数摄动和外来干扰的非线性系统。滑模控制(Slidingmode control，SMC)对系统参数的不确定性和干扰具有较强的鲁棒性[1，2 ] ，近来越来越多地被用于对空间飞行器的控制，但滑模控制的输出存在高频抖振。

The anatomical structure observation showed that the characteristics of the adaptation xeromorphic structure of eight species in dry hot valley were: deep main roots, developed lateral roots, thick leaves, well developed palisade tissue and degenerated spongy tissue, well developed water storing tissue, isolateral leaf were important characteristics of xeromorphic structure.

对元谋干热河谷引种的8种外来树种进行了抗旱性分析，发现水分利用效率从高到低的顺序依次是：窿缘桉、赤桉、柠檬桉、绢毛相思、肯氏相思、厚荚相思、大叶相思、马占相思。

Glutathione S-transferase, an important detoxification enzyme in mammalian cells, canalizes the conjugateion of GSH with electrophilic xenobiotics to facilitate their excretion from the body.

Glutathione S-transferase 为哺乳动物细胞中一重要的解毒酵素，它可以催化GSH与攻击DNA的亲电性外来物质结合，并将之代谢排出体外。

Though they inevitably have some historical remains during the process of accepting external cultures and shifting to the modernization, and some changes are vague, the reform of costumes' culture in the new epoch just reflects the renewal of people's traditional ideas.

尽管在接受外来新文化、向现代化过渡过程中，不可避免地会带着若干历史的遗迹，具有一定的模糊性，但它在新时代的这种服饰文化变迁，正好反映了人们传统观念的更新。

In the Epilogue, first, I point out that"Science"has on the other hand its dubious effect for May 4 New Litereture; On the angle of Baholkin's dialogue-doctrine, analysed the contain of"Science"as a"foreword"The conclusion of the whole thesis is brief and explicit: studying the influence of outside-from, factors on traditional Chinese culture and the epoch revolu tion from it, we should not solely notice the Western litere ture and art, but should pay sufficient attention to the modern science, knowledge of science history and scientific methods of the west, which had its great significance and played a great function of guiding and moving in many levels the May 4 New Litereture.

结语中，首先指出&赛先生&对于五四新文学也有一定的负面作用；从巴赫金对话主义的角度，分析了&赛先生&作为五四时代&引语&的蕴涵张性。总括全文形成的结论简单而明确：考察本世纪初外来因素冲击中国传统文学而形成的划时代革命，不能仅仅看到西方文艺的影响；还应充分估价西方近、现代科学、科技史知识及相关科学方法等思想渗透，对五四新文学发展各环节、各层面的制导作用及历史意义。

In recent years, the clinical use of exogenous androgens for treatment of sexual dysfunction has received a great deal of attention.

近年来，临床上使用外来雄性激素以治疗性功能不良方面，已得到广泛的注意。

A (Reporter correspondent Zhou Xiaorong Li) According to statistics, Suzhou and AIDS patients in the external account for more than 75%, of which more than 70% through sexual transmission.

本报讯(记者李晓通讯员周小蓉)统计数字显示，苏州艾滋病感染者和患者中外来人员占75%以上，而其中70%以上通过性传播途径。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。