He has worked out a mathematical problem.
他算出了一道数学题。
The orbit of one particular comets was a very difficult mathematical problem.
一个特殊彗星轨道是一个非常困难的数学问题。
In this paper we propose a new mathematical model with time-resource tradeoff problem.
提出了一个具有资源约束问题的时间—资源协调问题的数学模型。
Knights tour problem is a classical mathematical problem.
骑士游历问题是一个经典的数学问题。
A mathematical statistic method is proposed in this paper, to solve such a problem.
本文通过使用数理统计法，来解决上述问题。
The accurate velocity potential equation is chosen as a mathematical model of the problem.
选用精确速势方程作为问题的数学模型。
The accurate velocity potential equation is chosen as a mathematical model of the problem.
选用精确速势方程作为问题的数学模型。
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