underlying rules

基本解释

Systemising is the drive to analyse and explore a system, to extract underlying rules that govern the behaviour of a system;
而使事物系统化是另外一种本能，使人们愿意分析和探索系统结构并推导出支配系统功能的基本规则；
rermione.blog.163.com
In general linguistics has for goal to uncover and formulate the hidden underlying rules and laws that govern language and its use in the life of humans.
语言学家的任务是揭示语言背后的结构规律，以及分析人类使用语言的习惯。
If researchers can run experiments on an ecosystem, measuring exactly what goes in and out, tweaking different aspects and seeing what happens, then they can better decipher its underlying rules.
如果研究人员能在一个生态系统中做实验，并能准确地测量进出的一切，调整不同的方面，观察发生的现象，他们就能更好地破译其基本原则。

But remember that the underlying rules of the game haven't changed.
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The stated purpose of these troops is to stem the flow of refugees, but their underlying purpose is undoubtedly to remind Kim that he rules only with the good graces of China's leaders.
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No matter how the judge or jury rules, the case has as much chance of definitively settling the underlying questions as the Scopes Monkey Trial definitively settled issues about creation and evolution.
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