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The stability of system equilibrium point and the existence condition of 3-D Hopf bifurcation as well as the stability of hence generated periodic solution were analyzed, so that the existence of limit cycles on the two-dimensional stable manifold of one microbial species and its nutrition was verified when other one had the disadvantage in the competition so as to become extinct.

研究当营养消耗率δ1＝δ1为一般的非减连续函数和δ2＝常数的三维Chemostat模型，分析系统平衡点的稳定性，三维系统经历Hopf分支的条件和由此产生的周期解的德定性，证明系统中某一微生物物种处于竞争劣势而趋于灭绝时另一微生物物种和营养的二维稳定流形上极限环的存在性。

The stability of system equilibrium point and the existence condition of 3-D Hopf bifurcation as well as the stability of hence generated periodic solution were analyzed,so that the existence of limit cycles on the two-dimensional stable manifold of one microbial species and its nutrition was verified when other one had the disadvantage in the competiti.

研究当营养消耗率1δ=1δ为一般的非减连续函数和2δ=常数的三维Chemostat模型，分析系统平衡点的稳定性，三维系统经历Hopf分支的条件和由此产生的周期解的稳定性，证明系统中某一微生物物种处于竞争劣势而趋于灭绝时另一微生物物种和营养的二维稳定流形上极限环的存在性。

Focus your efforts in one area, and stick with one project at a time.

集中你的注意力在某一领域，并且一次只完成一件事情。

We need to care about the first time, the last time, that one time, and every time.

我们需要留意第一次，最后一次，某一次，或每一次的变化。

You can drive a two-ton truck to the loading dock on the ground floor and then lift the truck and its trailer up to your floor, back the trailer into position, unhitch and drive the truck out of the building.

你可以将一辆两吨重的卡车开上一楼的装货地点，将卡车和装载的货物一起运送到某一层楼，然后将货送到预定地点并放下货物，最后将卡车开出大楼。

In this paper, we propose a new approach to recognize occluded objects. The information of the magnitude of the local extreme of the open angles in the contour of a model at a scale, the information of the distance and relative location between the two adjacent dominant points are suitably integrated as a set of features for describing a model, the features are invariant under rotation, uniform scaling, and translation of the curve.

该文提出了一种新的识别有遮挡目标的方法，即将目标模型和含有目标的遮挡图象的轮廓在某一尺度上张角的极值、极值点之间距离、相对位置等信息集成在一起，作为描述目标模型的一组特征，且这组特征在平移、旋转和均匀尺度变换下保持不变。

It is a rare situation where one is faced with a dilemma without the benefit of having at least some information about that particular state of affairs.

人们面对某一困境，但对这一事态没能掌握最起码的信息线索，这一情境是极为罕见的。

From the "behavioristic" point of view, a certain class of modes of reaction o,f a person in the.

从行为主义的观点出发，一个人通常在清醒状态中的某一层级的反应模式被认定为是&有意识&的，当然这一层级并不包含，诸如睡眠的经验。

For example, in one of the English classese in Canada last year, the instructor was talking about the world-frightening news, the Tian An Men event that happened in 1989, which was telling that the China government used the military power to bloodily suppress the students who were holding the campaign to seek the democracy. This event was so familiar to all of us Taiwanese, Japanese, and Korean students, but totally strange to those studnets from China.

举例来说，去年在加拿大念语言学校的某一堂课中，老师提到了1989年震惊全世界的天安门事件：中共政府运用军事武力血腥镇压追求民主政治的大学生，这件事在我们班上少数的台湾人，日本人，和韩国人都耳熟能详，但其余来自大陆的学生却是一脸困惑，后来一问才知道他们在这辈子，无论是在学校，在家里，在媒体，还是在书刊上，都完全没听说过这件事情。

The evaluation for the literature of one country or region can be carded out by the analysis of the representative literary works of certain period.

对一国或一地区的文学实绩作评价可从某一时期的代表作品入手分析。

And if officials on the take are not parroting the opinions of these companies, what can we suppose the money they receive is for?

如果受贿的官员不鹦鹉学舌般地复述这些公司的看法，那他们所接受的钱又能用于什么目的呢？

Love them, and love you too, Pitcher.

爱他们，也爱你，投手。