象限

While there has no control, the behavior of the system is discussed in Chapter 3. No defines in the point (0,0) of the system brings much difficulties in the research on the kinetic nature near (0, 0). By applying the series theories and methods in the literature on the singular point of nonlinear equations, we solve this problem satisfactorily and give the all possibility of the orbits of the system converging (0,0) as t→+∞ in the First Quadrant.

因为系统在(0，0)点处没有定义，这给研究其在(0，0)附近的动力学性质带来了困难，我们应用文献中关于研究非线性方程奇点的系列理论和方法，圆满解决了这一问题，给出了第一象限当t→4+∞时，在全参数状态下系统的轨线趋于(0，0)点的所有可能情况。

By applying Bendixson-Dulac theroem, we show that the system admits no limit cycle in the first quadrant, thus the global stability of the interior equilibrium is followed.

首先通过运用Bendixson-Dulac定理证明了系统在第一象限没有极限环，从而证明了正平衡点的全局稳定性。

Diffusion problem of a predator-prey model with Holling typeⅡfunctional capturing function is studied. Stability condition is obtained when diffusion is absent, and the effect on stability of positive equilibrium is studied when diffusion is present. In the end, the problem of existence of limit cycle is proved in the first quadrant when diffusion is absent.

针对一类具有HollingⅡ型功能捕获函数的捕食－食饵模型的扩散问题进行了研究，得到了无扩散时正平衡点的稳定条件，以及扩散存在时对正平衡点稳定性产生的影响，最后证明了无扩散时系统在第一象限存在极限环的问题。

Give the coordinate equation of rotor linear .on the 3-section curve within the first quadrant of the rectangular coordinate, show the program block diagram of computer, and give the results of the sample.

给出了转子型线在直角坐标系第一象限内三段曲线的坐标方程式，列出了计算机程序框图，给出了实例结果。

Eg. Z1 in the first quadrant, exhibits inductive reactance.

拟译：Z1在第一象限，表示它是一个感抗

MAIN OUTCOME MEASURES: Spatial learning and memory, mean escape latency, times of passing through the platform point, swimming distance percentage of the first quadrant, and swimming distance percentage of the 20％ marginal area.

主要观察指标：空间学习记忆能力，平均逃避潜伏期，穿过平台次数，第一象限游泳距离百分率，20％边缘区游泳距离百分率。

1St, Feeds the individual cow possibly to present the slow food quadrant for the first time, 1-2 days later then restores normally.

首次饲喂个别奶牛可能出现慢食象限，一两天后即可恢复正常。

Using standardized coordinates, Obi-Wan Kenobi's hut is at southwestern edge of the Dune Sea, at Alpha-1733-Mu-9033 of Tatooine's first quadrant.

欧比旺·克诺比的小屋的位置在沙海的西南边缘，用标准坐标来标示，位于塔图印第一象限α-1733-μ-9033。

By using the method for positive term resolution of equations of higher degree, all non-zero real roots of a real coefficient equation of higher degreewere obtained by determiningthe abscissas of intersection points of two monotonically increasing concave functions in the first quadrant of a planar rectangular coordinate system.

用高次方程正项分解方法，将求解实系数高次方程非零实数根的问题，转化成求解两单调上升凹函数在平面直角系第一象限内交点横坐标的等价问题；给出了基于共享存储多指令流多数据流并行计算模型求解任意实系数高次方程全部实数根的大范围收敛性异步并行迭代算法，并分析了算法计算的复杂程度。

In order to enable the data result all to maintain at the first quadrant, asks the arctg function to Ts/NDVI, obtains the arctgTS/NDVI remotesensing image. In same with the NDVI image processing method,carried on the unsupervised classification method to the forth principal components of the arctgTS/NDVI remote sensing image, also can get 8 kind of land cover types.

将时序SOPT-VEGETATION/NDVI数据和NOAA时间序列的Ts数据结合起来构建Ts-NDVI空间，为了使研究的数据结果都能保持在第一象限，对Ts/NDVI求arctg函数，得到时序arctgTS/NDVI数据。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。