只进行单位转换，保证实际长度一致。

When you just want to convert the Unit but keep the same length.

youdao

多功能单位转换被内置于摩尔转换工具。

Versatile unit conversions are built into the tool for molar conversion.

youdao

我们将创建的应用程序是一个简单的单位转换应用程序。

The application we will create will be a simple unit-converter application.

youdao

In addition to that, we have that epsilon nought value, remember that's the permittivity constant in a vacuum, and basically that is what we use as a conversion factor to get from units. We don't want namely coulombs to units, we want that will allow us to cancel out in this equation.

这是电子的电荷，此外，我们有epsilon零，记住这是真空的介电常数，这是我们用来转换单位的转换常数,我们不想用库伦单位，我们希望这个可以在方程中约去它。

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