Any number of arbitrary steps can then be performed in this initial environment before the real root is mounted and we switch to using the real root and destroy the initial RAM disk.

在安装真实的根、切换为使用真实的根并销毁initial RAM disk之前，任何步骤都可以在此初始环境中执行。

youdao

In fact, it can generally be a complex number with both a "real" part that's an ordinary number and an "imaginary" part that's multiplied by the square root of one.

事实上，它通常是一个复数的形式，包括普通数字的实数部分和需要乘以负一的平方根的虚部。

youdao

Before moving on I can describe a very simple example of pre - and post-conditions: a routine that computes the square root of a real number.

在结束此话题之前，我可以举一个有关前置和后置条件的简单例子：一个例程要计算一个实数的平方根。

youdao