查询词典 autonomous variable

In order to prove the global asymptotical stability of the endemic equilibrium, we introduce the change of variable which can reduce our original four-dimensional system to a three-dimensional asymptotical autonomous system with limit system.

利用复合矩阵理论以及竞争系统的Poincaré性质排除了渐近自治三维系统的极限系统周期解的存在性，进而利用极限方程理论得到了原四维系统地方病平衡点的全局稳定性。

Thirdly, as the result of this research, the author points out that the following competitive and dynamical evolving network should be the target of Chinese IOS: 1 The network is dominated by oligopoly; 2 Large, medium and small-sized enterprises co-exist in the network; 3 This network structure is realized through market adjusting, and it should be the result of autonomous evolution of IOS; 4 As to the realization of this network structure, government only is an exogenous variable and its function is to create the external condition to promote the evolution of IOS.

所以论文提出了我国产业组织结构演进的目标状态应该是"寡头主导，大、中、小共生"的竞争动态演进型产业组织结构，同时强调这种产业组织结构的实现应该是在市场机制的调节下、在产业组织结构的自发演进中实现，政府的作用空间仅仅是为其实现创造外部条件，不可人为安排一种市场结构。

Thus, the phenomenon of this autonomous helicopter whose fuselage circles the rotor hub to swing, is one kind of symmetrical two-dimensional pendulum with variable suspension point, and characterized as a non-linear, strong-coupling, high order, unstable system.

其机体绕旋翼桨毂的钟摆现象为对称变悬点二维摆，且具有非线性、强耦合、高阶次、不稳定等特性。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。