把方程两边都加上（或减去）同一个数或同一个整式，就相当于把方程中的某些项改变符号后，从方程的一边移到另一边，这样的变形叫做移项。
移项 [yí xiàng]
n. transposition ; transposing
vt. transpose ; transplant
misc. transposition of terms
网络释义专业释义
... 转置共轭矩阵 transposed-conjugate matrix (一)位调;转置；(二)换位；(三)易位;移项 transposition 换位反应 transposition reaction ...
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双语例句原声例句
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费拉罗说，印尼的有条件现金转移项目最有价值的地方在于它将使其他亚洲国家受益。
According to Ferraro, the CCT program in Indonesia is most valuable in that it will benefit other Asian countries.
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在迁移项目过程中，zip 压缩文件的大小通常很大。
While moving a project, the zip file usually becomes very large in size.
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这些因素对于客户机迁移项目尤其重要，因为用户会受到直接影响。
These factors are especially important in a client migration project because users are affected in such a direct way.
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So I took this to the other side and I divided through by 2b and the b here cancels.
通过移项和通分成2b,就可以消去b了
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