1)  two variables
两尺度
1.
This paper discusses the first step of the asymptotic expansion of the weak nonlinear equation y ″+y ′=-ε(λ 1 sin y ′+λ 2e y ) using the method of two variables, and obtains the following result: y=a cos( t+β ).
用两尺度法探讨了弱非线性振动系统y″ +y′=-ε(λ1 siny′ +λ2 ey)的一阶一致有效展开式 ,得到结果y=acos(t+ β) ,其中a和β由a =-λ1 ∑∞n =1(-1) n + 1 na2n + 1(n !) 2 2 2n - 3和aβ=λ2 ∑∞n =1na2n - 1(n !) 2 2 2n - 3确
2)  two scale symbol
两尺度符号
1.
Basing on the construction of wavelet, discuss the close relation between the scaling function and wavelet function s two scale symbol and wavelet construction.
立足于小波的构造 ,比较深入地探讨了尺度函数和小波函数的两尺度符号与小波构造的紧密关系。
3)  two-scale sequences
两尺度序列
1.
The propriety of centrosysmmetric spline function and the two-scale sequences expressions have been investigated,and gives a new kind of centrosysmmetric spline wavelet by the use of the centrosysmmetric B-spline function and the construction of wavelets from their transfer functions.
该构造方法简单,样条小波的两尺度序列有明确的表达式。
4)  two-scale matrixes
两尺度矩阵
5)  refinement equation
两尺度方程
1.
There are only 4 terms in the corresponding refinement equations of the orthogonal scaling functions and the wavelets (and so do the decomposition and reconstruction algorithms).
构造的正交尺度函数和小波的两尺度方程中只包含4项,因而相应的分解和重构算法也只有4项。
6)  two-scale similarity transform
两尺度相似变换
1.
Increasing approximation order of finite element multi-scaling functions by two-scale similarity transform;
利用两尺度相似变换提高有限元多尺度函数的逼近阶
2.
With the help of two-scale similarity transform (TST), after constructing suitable transform matrix Mr(w) we are able to increase the approximation order to an arbitrary integer which is bigger than 2, and preserve the symmetry and compact support of the new multi-scaling functions.
从具有2阶逼近的GHM多尺度函数出发,鉴于其逼近阶数相对较低的缺点,利用两尺度相似变换(TST)的方法,构造变换矩阵Mr(ω),将它的逼近阶提高到了任意大于2的整数,并保持了紧支性和对称性,提高了GHM多小波逼近光滑函数的能力。
参考词条
补充资料：寄两银榼与裴侍郎因题两绝句
【诗文】：
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