应用有限差分法对试井的数学模型进行求解，采用中心差分。
Applying the finite difference method to solve mathematics model of the well tests, and the central difference method is used.
本文主要讨论经济数学教学改革的几点尝试，其中心是密切应用数学与经济活动的关系。
The main idea of this article is to discuss the close relation between the teaching of economic mathematics and economic activities.
1956年，他移民至美国，在通用电气公司担任应用数学家，并于1958年进入研发中心。
He immigrated to the USA in 1956 and worked as an applied mathematician for General Electric Company before joining the Research and Development Center in 1958.
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