However, because deuterium, in so-called "Heavy-Water," is used to moderate neutrons in some nuclear reactor designs, it is separated from regular water on a large scale.
如论如何，因为氘，在所谓的“重水”里，在一些核反应堆设计里是用于中和中子的，它和普通的水在一个大的程度上是分开的。
The house, too, as described by Sir John, was on so simple a scale, and the rent so uncommonly moderate.
而且，按约翰爵士所讲述的，这所房子的规模很小，租金又非常便宜。
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