经济学中的边际、弹性、消费者剩余等许多问题，都涉及到极限思想这一重要方法。

Many issues such as margin, flexibility, consumer surplus in economics relate to this important method — limit thinking.

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二是假定垄断者测试及其执行方法，包括临界损失分析、临界弹性分析、转移率分析、剩余需求分析和机会成本法；

HMT and its implementing methods, including critical loss analysis, critical elasticity analysis, diversion rate analysis, residual demand analysis and opportunity cost method;

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弹性的综合测试与剩余伸长、张力和延伸率有关；

The constant ratio of elongation and tensile force is elastic modulus;

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