The theory of modules is increasingly important in modern mathematics. It unifies many mathematical structures, and is the basic tools in commutative algebra.

模的理论是现代数学中越来越重要的工具，它统一了许多数学结构，也是研究交换代数的基本工具。

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It features a strongly typed hierarchy of mathematical objects and commonly used programming data structures for grouping and controlling the objects.

其突出特性是强类型的数学对象层次结构和对对象进行分组和控制的常用编程数据结构。

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Civil engineers build mathematical models of Bridges and other structures to calculate how much weight and stress they can bear before committing to an expensive construction phase.

土木工程师建造桥梁和其他结构的数学模型，从而在进入昂贵的实际建设阶段之前计算出所设计的结构能够承受多大的重量和压力。

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We have theories--mathematical theories-- that lead us to devise financial structures, which are complicated devices just like engines or nuclear reactors.

金融学中的理论,数学理论,能帮助我们构造金融工具,金融工具就像发动机,或者核反应堆一样,都是复杂的工具

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