1) constraint
[英][kən'streɪnt] [美][kən'strent]
约束(因素),限制(因素)
2) restrictive factors
约束因素
1.
However, a number of restrictive factors exist for their steady, sound and sustained operation.
高校后勤经济实体稳健经营的意义深远 ,但要实现其稳定、健康、持续经营还存在许多约束因素。
3) restrictive factor
制约因素
1.
Comment on restrictive factor and countermeasure of tax levy and management in China;
论我国税收征管质量的制约因素及对策
2.
Analysis on the restrictive factors of Chinese education innovation;
我国教育创新的制约因素分析
3.
A study on restrictive factors and countermeasures of university Marxism theory education in the period of society transformation;
社会转型期高校马克思主义理论教育的制约因素及其对策研究
4) restricting factors
制约因素
1.
An analysis of present situation and restricting factors of US direct investment in China;
美国在华直接投资现状及制约因素分析
2.
The Restricting Factors on the Credit System Reform in Universities and Countermeasures;
高校学分制改革的制约因素与对策探讨
3.
The Research of Restricting Factors and Counter Measures on the Transnational Merger and Acquisition of the Chinese Enterprises;
中国企业跨国并购的制约因素及对策研究
5) restriction factors
制约因素
1.
The restriction factors in the less developed areas and their development strategies in coastal China;
沿海经济低谷地区的制约因素与发展策略
2.
Research on the restriction factors to the modern Chinese scientific culture
近代中华科学文化衰退的制约因素探析
3.
By analyzing the opportunity and restriction factors in develop process, we bring forward the countermeasure to carry out rational development of chinese medic.
通过分析目前我国医药物流面临的机遇及发展中的制约因素,提出推行我国医药物流理性发展的对策。
6) Restrictive factors
制约因素
1.
Discussion on application of steel structure & restrictive factors in its development;
浅谈钢结构的应用及其发展中的制约因素
2.
Analysis of comparative advantage in water rights transaction and the restrictive factors in our water rights transaction;
水权交易中的比较优势及我国水权交易制约因素分析
3.
Restrictive Factors for Season-Reversed egetables in An ning Valley and Countermeasures;
浅谈安宁河流域反季节蔬菜发展制约因素及对策
补充资料:约束
约束 constraint 对质点系各质点的位置和速度预先施加的几何学或运动学的限制。只限制系统位置的约束称几何约束;若还限制运动速度,而且这个限制不能化为位置的有限形式,则称为运动约束或微分约束。约束的数学表达式称为约束方程。力学系统同其包含约束方程类型的关系如下表:
约束还可分成单面约束和双面约束。受单面完整约束的质点可从约束面的一侧脱离;受双面完整约束的质点不能从约束面的任一侧脱离。常见的约束有柔性绳索或链条约束、光滑接触面约束、圆柱形铰链和球形铰链约束、铰链支座约束等。约束限制质点系中各质点的自由运动,故约束对质点系有作用力,称约束反力,简称约束力。掌握约束特性,写出约束方程,确定系统的受力状态,是研究系统运动或静止状态的重要依据。 只包含有限约束(包括几何约束和含时几何约束)的动力系统称完整系统。拉格朗日方程就是用于完整系统的最著名的动力学方程。至少包含一个不可积微分约束的动力系统称非完整系统。对非完整系统,要用更复杂的微分方程来描述。带有滚动轮子的系统(如自行车、汽车、飞机起落架等)大都是非完整系统。 |
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条