On the basis of these experiments and of field observations, the so-called law of competitive exclusion was formulated, according to which no two species can occupy the same niche.
在这些实验和实地观测的基础上，人们制定了所谓的竞争排斥定律，根据该定律，没有两个物种可以占据相同的生态龛。
On the other hand, "we can't prove there is no fifth planet." No one yet has the required precision in their observations to prove the absence of such a small exoplanet, he notes.
另外一方面，他写到“我们不能证明没有第五颗行星”，还没有人要求他们观测的精确性，以证明这个小型外系行星的缺乏。
But yesterday at an exoplanet meeting in Turin, Italy, Switzerland-based astronomers announced that they could find no trace of the prized planet in their observations of the same planetary system.
但是昨天在意大利的都灵召开的外星系大会上，瑞士天文学家宣称在他们观测的类似星系中，还没有有价值的行星。
The corrected data, supplemented by additional observations on rainfall and mosquito habitats, indicated that there had probably been no malaria transmission before starting the control operations.
经纠正的数据加上对降雨和蚊子栖息地的观察表明，在开始防治工作前，可能不存在疟疾传播。
Yet Rubin's observations found no drop-off at all in the stars' velocities further out in a galaxy.
然而鲁宾的观测结果则表明，远离星系中心的全部星体的速率都没有降低。
The observations are by no means conclusive, and Lisse concedes that instead of a storm of smallish comets, he could be seeing the debris from a single big one.
这一观测结果还不足下定结论，Lisse承认除了由小彗星组成的“风暴”，他也观测到一个大体积星体的残迹。
This one way to share your observations of the Moon with many people, no matter where they are.
这是将你对月球的观察与其他人分享的一个方法，不管他们人在何处。
The control group, with no reverse recall, averaged 48.7 correct observations about the incident.
没有使用倒序回忆法的控制组正确回忆事件的平均得分为48.7。
Yet elsewhere the writer and philosopher Havel makes observations on subjects no other politician of recent times would have touched.
然而对其他当代政客不去触及的话题，作家、哲学家哈维尔却要发表见解。
No short list of observations about the SCJP exam is sufficient as a complete study guide.
任何关于SCJP考试的评述的简短列表都不足以成为完整的学习指南。
Though we have now asserted control over the world's biologists, there is no accounting for the unauthorised observations of farmers, gardeners, birdwatchers and other troublemakers.
现在虽然我们可以断言控制了世界各地的生物学家，但是那些未经授权的农夫、园丁、鸟类观察者和其他麻烦制造者不在其列。
I suspected there was no quality control whatsoever in the factory. After making observations for a week I found this was indeed the case.
我怀疑这家工厂什么质量控制也没有。经过一周的观察，我发现情况果真如此。
While there is no hard and fast rule, over time, observations of increases in data will correspond to increases in utilization of DataPower resources.
虽然没有一种严格的规律，但是随着时间推移，数据的增长将对应于DataPower资源利用率的增长。
There are no late essays, because he ran out of observations.
不存在后期随笔，因为他的观点已经写尽。
I suspected there was no quality control whatsoever in the factory. After making observations for a week I found this was indeed the case.
我怀疑这家工厂啥质量控制也没有，经过一周的观察，我发现情况果真如此。
The results by these two approaches are the same as by QUAD(Quasi Accurate Detection), and the observations with gross error no longer affects the adjustment.
结果表明，两种方案与“拟准检定法”具有相同的效果，具有粗差的观测值在平差时不起作用。
I suspected there was no quality control whatsoever in the factory. After making observations for a week I found it was indeed the cases.
我怀疑这家工厂什么质量控制也没有。经过一周的察看，我发现环境果然如此。
While allergic shiners are considered important signs of allergic rhinitis, there is currently no objective or quantitative tool to verify these clinical observations.
虽然过敏性黑眼圈是过敏性鼻炎的重要体征，但是目前尚无定量的目标或工具来验证这些临床观察。
Well…form my observations, sometimes it's better of not knowing. And other times there's no reason to be found.
我看来…有时候不知道也许会更好，还是有些时候，根本就没有理由。
I suspected there was no quality control whatsoever in the factory. After making observations for a week I found it was indeed the cases. Unit 8.
我怀疑这家工厂什么质量控制也没有。经过一周的观察，我发现情况果真如此。
Well…form my observations, sometimes it's better of not knowing. And other times there's no reason to be found.
根据我的观察，有时又不知道要更好些，其余的时候呢，没有理由可循。
The paper draws no conclusions about what these observations in monkeys mean for the human world.
因为这篇文章的最后，并没有从猿猴的观察中得出任何与人类世界有意义的结论。
Simple models, no matter whole mantle convection model, or layered mantle convection model, cannot explain all the observations.
无论是简单的全地幔对流模型或分层地幔对流模型，都不能完全解释全部观测事实。
Conventional one-to-one matching decision algorithms are no longer applicable when the observations to be matched come from sensors of different resolution.
对于不同分辨率传感器观测之间的匹配问题，传统的一对一匹配判决算法已不再适用。
Conventional one-to-one matching decision algorithms are no longer applicable when the observations to be matched come from sensors of different resolution.
对于不同分辨率传感器观测之间的匹配问题，传统的一对一匹配判决算法已不再适用。
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