数学模型

Hepatitis B ; Compartmental Model ; Vaccination.

乙型肝炎；数学模型；免疫接种

Modeling is one of the main methods used to research our world. Different kinds of models can be settled to solve different problems, such as physical models, mathematical models, figural models etc.

建模是人类认识世界和改造世界的主要方法之一，常用的数学模型有物理模型，数学模型，图示模型等等。

The authors try to use conceptual model,mathematical model and computer model to reconstruct the formation and evolution of dynamic geomorphic features of tectonic gulches.

尝试从概念模型、数学模型、计算机模型等多个层次构建构造成因的沟谷形成、演变的动态地貌模型。

Theory of topographic—isostatical ; potential disturbance ; deflection of the vertic ; mathematical model

地壳均衡理论；挠动位；垂线偏差；数学模型

Non—planeness measurement ; data processing ; error ; mathematical model ; optimization method ; constraint

不平度测量；数据处理；误差；数学模型；最优化方法；约束

Sinusoidal magnetisation ; magnetostriction ; ferromagnetic materials ; vibrations ; mathematical model

正弦电磁场；铁磁材料；磁致伸缩；振动；数学模型

In the second part, the basic concepts, theory and mathematical model are expatiated.

第二部分阐述了直接转矩控制的基本概念，理论基础，数学模型。

Management ; mathematical method ; ideology ; moiled ; mathematical model.

管理；数学方法；理念；模式；数学模型

Activated-sludge process; A2/O; process; Optimum design Mathematical model; Systems analysis; Matlab

活性污泥法； A2/O工艺；最优化设计；数学模型；系统分析； Matiab语言

Activated-sludge process; A2/O; process; Optimum design Mathematical model; Systems analysis; Matlab

活性污泥法； A2/O工艺；最优化设计；数学模型；系统分析； Matiab语言水利图文3cU3HNR

Liapunov—Schmidt method is one of the most important method in the bifurcation theory.

Liapunov—Schmidt方法是分叉理论的最重要方法之一。

Be courteous -- even when people are most discourteous to you .

要有礼貌──即使当別人对你最不礼貌的时候。