substitution of variables 中文意思是什麼
substitution of variables
解釋
變量代入法- substitution : n. 1. 代，代用，代替，更替，置換。2. 【化學】取代；【數學】代換；代入；【法律】預定繼承人；【語法】詞的代用。adj. -al ,-ary adj.
- of : OF ＝Old French 古法語。
- variables : 變量
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The governing equations of the problem are derived in hamiltonian form by using variable substitution and variational principle. then the methods of separation of variables and conjugate symplectic eigenfunction expansion are developed to solve the equations of plate bending problem. the result can be derived by analytical method
在平面彈性問題中，由變量代換及變分原理，方程可導向哈密頓體系，從而通過分離變量法及共軛辛本徵函數向量展開法，以解析的方法來進行求解。 -
First of all, both r & d labor and r & d capital input variables are introduced into the input vector, and a two - level ces production function model is constructed to describe the technology of production. then the firm - level cross - section data of shanghai ’ s main manufacturing industries in 2003 is employed to study the input - output effect of r & d as well as the substitution relationship among input factors. moreover, the thesis also makes a methodological discussion of multicollinearity, and proposes a feasible approach to deal with the problem
首先，在生產函數的投入要素向量中引入r & d投入變量，包括r & d人力投入和r & d資本投入;然後，結合相關的研究經驗和本文的研究目的，構建了相應的二級ces生產函數模型;在此基礎之上，採用2003年上海主要製造業企業的橫截面數據，分行業研究了r & d投入對產出的作用以及r & d投入與非r & d投入之間的替代關系。 -
Will be renamed to something else before substitutions if one of the substitution variables is named
就會被重新命名成其他的名字。 -
Many error messages have substitution variables in which information, such as the name of the object generating the error, is inserted
許多錯誤消息都有替換變量，其中插入了一些信息，如生成錯誤的對象名稱。
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