伍时桂和李兆治所建设的非线性波传播方程组是做了某些数学简化和变换。
This paper deals with methods of numerical solutions for problems of nonlinear wave propagations in arteries.
张桂梅出生在黑龙江省，17岁时去了云南。
Born in Heilongjiang Province, Zhang Guimei traveled to Yunnan when she was 17.
工厂开始时生产和李桂莲一样的农村人使用的简单物件，比如桌布、围裙和套袖。
The factory started out making the kinds of simple items used by rural folk like Ms. Li: tablecloths, aprons and sleeve protectors.
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