基本思想

This article introduces three kinds of line cliping algorithms from the basic algorithm philosophy, the algorithm description,the algorithm steps and so on. Then it used the VC programming to realize these three algorithms on the basis of analysing the characteristics and the performance of three algorithms .

本文从算法基本思想、算法描述和算法步骤等方面介绍了三种直线段裁剪算法，在对三种算法的特点和性能进行分析的基础上，使用VC编程实现了这三种算法。

Its basic idea is to use ZVS circuit which makes the main circuit of inverter resonate at every beginning of carrier period, so each power devices can be commutate when the voltage of main circuit's DC bus line is zero.

其基本思想是，通过零电压开关电路使逆变器主电路在各载波周期起始时刻产生谐振，确保各功率开关器件在主电路P、N极间电压为零期间进行动作切换。

Its primary concept is to create n decision trees in n data subsets, extract the rules, work out the relatively important features in accordance with the frequency of use of different features and verify its feasibility and effectiveness through tests.

它的基本思想是通过在n个子数据集上建立n棵决策树，提取其中的规则，根据特征属性使用频度的不同，计算出相对重要的属性，并通过实验验证了其可行性和有效性。

Based upon RMTong's thought of regarding fuzzy model as the set of fuzzy conditional proposition by converting the accurate value into a fuzzy one, the structure of a fuzzy system formed by alloy element adding amount and material characteristic norm is determined, and then the fuzzy model of the system is built.

根据RMTong把模糊模型看作是模糊条件命题的集合这一基本思想，通过精确量的模糊化，确定了合金元素加入量与材料性能指标组成的模糊系统的结构，建立了该系统的模糊模型，为研究合金加入量对材料性能的影响提供了一种普遍意义下的新方法

The first chapter introduces the trust region method , quadratic model and conic model.

第一章主要简介了信赖域方法的基本思想、二次模型和锥模型的研究状况。

The path is defined as linear combination of a sequence of conjugate directions whichare obtained by applying standard conjugate direction method to approximate quadratic functionof unconstrained optimization.

Bulteau和Vial在[7]中构造了无约束最优化问题的共轭梯度路径，其基本思想是将标准共轭方向法应用于无约束优化目标函数f的局部二次近似函数，得到一组共轭方向序列。

The basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发方法之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

Basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

Prototype Method is one of the outstanding systematic development methods. The basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发方法之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

Prototype Method is one of the outstanding systematic development methods. basic thought of law in that system develop initial stage, base on the foundation of preliminary investigation of the user's needs, Construct a systematic embryonic form a workable prototype with the fast method.

原形法是优秀的系统开发之一，其基本思想是在系统开发的初期，在对用户需求初步调查的基础上，以快速的方法先构造一个可以工作的系统雏形。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。