One of the strongest variables in happiness that we can control is our personal relationships. An increased quantity and quality of personal connections can have a significant impact on our happiness.

与他人的关系是影响我们幸福感大小的一大因素，与他人关系质性和量性的增长都直接影响我们的幸福感。

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In addition, a screen or control can define local state (using variables) and use control structures to iterate over collections and conditionally show parts of the user interface.

此外，屏幕或者控件也能够定义本地状态(使用变量)，并使用控件结构来对集合进行迭代，从而根据条件显示用户界面的各个部分。

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So the membership function of input and output lingual variables and control rules are formed in this thesis.

在此基础上，构造出了模糊控制器的输入输出语言变量值的隶属度函数和模糊控制规则。

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That is, in real life, the variables that you'd normally control aren't some combination of entropy and these variables, but really their temperature, volume and pressure, any couple of those, might be what you'd really have under experimental control.

在生活中，我们所能控制的,不是熵和其他变量的组合，而是温度，体积，压强，以及其中的两两组合,这些才是试验中所能控制的。

麻省理工公开课 - 热力学与动力学课程节选

No centralized planner is omniscient enough to know or omnipotent enough to control the complex variables in a free market.

FORBES: What Kind of Power Is the Most Dangerous?

Customer experience expectations evolve rapidly in response to variables unrelated to and over which the vendor has no control or prescient knowledge.

FORBES: Customer Experience: Is It The Chicken or Egg?

They try to control for differences in circumstances by including variables that indicated whether the individuals were involved in drugs or alcohol at the time, whether they have had prior arrests, and other characteristics of the person and their situation at the time.

FORBES: A Useless Study on Gun Possession