unknown variable meaning in English
未知数
Examples
- the method has good preciseness and less unknown variables and it is convenient to be used in practice
该方法收敛性较好，未知量少，便于实际应用。 - based on the conditions of compatible displacement and static force equilibrium, the finite element equations are built with the displacements of the middle surface as unknown variables
据此，再根据地基与板间的位移协调及静力平衡条件，建立了以板的中心面位移为未知量的有限元方程。 - by use of the fourier transform, the problem can be solved with the help of two pairs of dual integral equations in which the unknown variables are the jumps of the displacements across the crack surfaces
利用傅立叶变换，将问题的求解转换为对以裂纹面上位移差为未知函数的对偶积分方程的求解。 - via the transform of coordinate, mode iii crack problem in physical plane is inversed to stress plane to be investigated . equilibrium equation and compatibility equation are deducted, in which ( x, y ) is expressed by unknown variable 7 ^, 7 ^,
通过坐标变换，将物理平面中型裂纹问题变换到应变(应力)平面中加以研究，推导出用(_x，，_y)为未知变量表示(x，y)的平衡方程和协调方程。 - while in traditional elasticity mechanics, we make our best to eliminate the unknown variables and can get the simplest equation in a brief form . at the same time, the rank of equation is increased, so we cannot solve the equation by direct method and have to resort to semi-converse method
而传统的弹性力学，其求解方法是尽量消元以使未知量减少，方程形式简单，宁可让方程阶次提高，故数学物理方法中最基本的分离变量法就难以实施，只能采用半逆法。