边界变换，新的角色加入，但是权力总会找到一个地方抬起头来。
Boundary transform, new roles to join, but power always find a place looked up.
每当我问爷爷奶奶他们的父母是哪儿的人，他们总会无一例外地给我扯上一通历史，告诉我波兰和俄罗斯的边界如何变换了很多次。
Whenever I asked my grandparents where their parents were from, they'd all launch into the same speech about how Poland and Russia switched borders a lot.
采用完全变换法施加本质边界条件，给出求解椭圆型边值问题的无网格伽辽金方法。
The full transformation method is used in element-free Galerkin method for solving the elliptic boundary value problems.
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