The mixture is then distilled in vacua.

然后混合物进行真空蒸馏。

Higher pressures and vacua upon request!

可根据要求所需更高压力和真空。

Similarly, only a small fraction of the stable vacua are hospitable to life.

同样地，只有稳定真空的一小部份才适合生命。

Then the author is able to define thespace of covacuaand thespace of vacua in the same way as in the untwisted case.

这样，作者将给出扭真空空间和扭余真空空间的概念，其定义类似于非扭的情形。

These may completely change or do away with the landscape of string vacua or with the cascade of bubbles that populate the landscape.

这些也许将完全改变或去除弦真空的地景，或者放弃在地景上聚集成瀑布般的泡泡。