1) irrigation ditch
渠系基础
1.
On the numerical solutions of nonlinear temperature and moisture field in the base of irrigation ditch under frozen condition;
渠系基础冻结过程水热耦合问题数值分析
2) basic solution
基础解系
1.
On the basis of HMO theory, this article introduces a basic solution method to calculate wave function of degenerate energy level for conjugated molecules, and some examples were given in it.
本文利用基础解系方法,用HMO法确定共轭分子简并能级波函数,并给出了几个典型实例。
2.
In this paper, we study the general solutions, basic solutions and particular solutions of linear equations by elementary row transformations and column transformations method, and we also discuss the judgment method of solutions.
研究了用初等行变换和列交换求线性方程组通解、基础解系、特解的简便方法 ,讨论了解的判定方
3) basic system of solution
基础解系
1.
This paper introduces the concept of basic system of solutions for the nonhomogeneous linear equation set, and further discusses its structure and transition matrix.
在非齐次线性方程组中引入基础解系的概念,并在此基础上进一步讨论了解的结构,以及基础解系间的 过渡矩阵。
4) foundation systems
基础系统
1.
Steam turbine-generator-foundation systems are rather large and complicated, field tests of the dynamic behavior for steam turbine-generator-foundation are usually very difficult.
对汽轮发电机组 -基础系统模化过程的动力特性相似准则关系进行研究 ,作者根据相似理论 ,分别采用量纲分析法和方程分析法建立了模型和原型之间的动力特性相似准则关系。
5) system of basic solutions
基础解系
1.
This paper proves the existence theorem of the system of basic solutions for the right homogeneous linear equation sets over a non-commutative principal ideal domain R and gives the representation of the solutions for the right linear equation sets over R.
证得非交换主理想整环R上右齐次线性方程组基础解系存在定理,给出R上右线性方程组解的表示。
2.
This note presents a method to solve a homogeneous system of linear equations by giving linear independent vectors as a system of basic solutions.
给出求以已知一组线性无关的向量为基础解系的齐次线性方程组的方法。
6) basic set of solutions
基础解系
1.
The author of the article studied the increasing character about the solutions of the matrix equation AX=0,with the character,the author gave out the method of solving power matrix equation A~mX=0,by increasing a maximum suitably increasing basic set of solutions of AX=0,and solved the difficulty in solving A~mX=0,if the power exponent m is biggish.
研究了矩阵方程AX=0解的增长性,并应用解的增长性,通过增长AX=0的一个极大可增长的基础解系的办法,得到了幂矩阵方程AmX=0的基础解系,从而解决了因幂指数m较大以致AmX=0难以求解的问题。
2.
It is easy to prove some propositions on rank of matrix or vectors by using the relations to rank of the coefficient matrix of homogeneous system of linear equations AX=0 and its basic set of solutions.
利用齐次线性方程组 AX =0的系数矩阵的秩和它的基础解系之间的关系 ,比较容易地证明许多有关矩阵秩或向量组秩的一些命题 。
3.
In this paper, a inverse theorem about linear homogeneous equation systems existing basic set of solutions is given and proved.
本文给出了齐次线性方程组存在基础解系的逆定理及其证明 ,同时也给出了由线性无关向量组构造齐次线性方程组的一般方法步骤 。
补充资料：渠系水利用系数
渠系水利用系数
efficiency of canal system flow
quxishui ljyong xishu渠系水利用系数(effieieney of eanalsystem flow)渠道流量稳定时，同一时I’dJ末级固定渠道净流量之和与渠首引入流量的比值1它表示了从渠首到最末一级固定渠道中水可被利用的程度，是反映灌区自然条件以及渠系工程技术状况和管理水平的综合指标。其计算公式为:田nqn刀，Qh习Q，， 舔式中q、为灌区的净灌水率值，以米“·秒一‘·万亩‘止t;习Qf、为自末级固定渠道(即农渠)，月出的净流量的总和，以米“/秒计;Q。为与习Qf二同时期的灌区渠首引水流量.以米“/秒计:刀‘为田间水利用系数;。，为灌区净面积，以万亩i十。根据渠系水利用系数的定义，}]s还可用各级固定渠道的渠道水利用系数的连乘积表示，即:，、~刀二·夕。·夕，·伪式中枷、刀。.//t、衍分别为干渠、支渠、斗渠、农渠等各级固定渠道的渠道水利用系数，其值可根据渠道水利用系数条目中有关计算公式求出。 渠系水利用系数与灌区大小、渠床土壤、渠道长度、防渗措施和管理水平等因素有关，见表。 灌区渠系水利用系数表┌─────┬──────┬─────┬──────┬─────────┬─────┐│灌溉面积 │<工.0 │1 .0一10.0│10.(1一30.0 │30 .0一10叹、.(、 │卜飞{、吸)││ 〔万亩) │ │ │ │ │ │├─────┼──────┼─────┼──────┼─────────┼─────┤│夕‘ │()85一().75 │().75一0.7│0 .7一0.65 │()6 │() 55 │└─────┴──────┴─────┴──────┴─────────┴─────┘(沈佩君)
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