A traditional approach is to isolate a variable that is believed to solely influence either supply or demand.

传统的方法是将一个被认为是只影响需求或供应的变量孤立出来。

youdao

You will supply the value for this variable when deploying a pattern that contains this script package.

在部署包含此脚本包的模式时，将为该变量提供一个值。

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You can supply the variable as an array of values, each of which indicates a specific type of warning to suppress.

可以以值数组来提供变量，其中每个值指明要阻止的一种特定警告类型。

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And these electrodes are then connected to a variable voltage power supply.

这些电极然后,和一个变压电源连接起来了。

麻省理工公开课 - 固态化学导论课程节选

That they are not including the cost of connecting wind power to the grid, the necessary costs of dealing with variable supply, of needed back up and so on.

FORBES: Grantham Inst. Report Shows That We Should Abandon Wind Power Subsidies

In time they buried some 380, 000 miles of pipelines throughout the United States, which now handle 63 billion cubic feet of natural gas and 20 million barrels of crude a day, removing a crucial variable from the supply chain and stabilizing markets.

FORBES: Ethanol: Getting There Is None Of The Fun

Of course, more distributed generators contributing variable renewable energy to the grid means an increasing challenge to regulate the consistency of supply and demand.

FORBES: Distributed Generation: Key Part of Our Energy Future - Phil Harris