That means there’s no need to spend time and energy purifying the drug from the tobacco.

这意味着无需花费时间和精力从烟草中提纯药物。

Remember that this is a high and holy thing, and that the heart which would receive it must be purified from every selfish thought.

请记住，这是一件崇高圣洁的事，要接受它的心必须从一切自私的思想中净化。

Prior to the advent of gene cloning and protein production via recombinant DNA techniques, it was necessary to purify these molecules from animal tissues or donated human blood.

这两种来源都有缺陷，包括非人源蛋白功能上的细微差异以及可能存在的病毒的污染。

If she gives birth to a daughter, for two weeks the woman will be unclean, as during her period. Then she must wait sixty-six days to be purified from her bleeding.

她若生女孩，就不洁净两个七天，像污秽的时候一样，要在产血不洁之中，家居六十六天。

That's because for a lot of common flavors, we know the main chemical behind them, and whether you purify it from fruit or make it synthetically, a compound is a compound is a compound.

对大多数普通的香精来说，我们知道它们的主要化学物质，不论是从水果中提纯还是额外合成，混合物还是混合的混合物。

Then the woman must wait thirty-three days to be purified from her bleeding. She must not touch anything sacred or go to the sanctuary until the days of her purification are over.

妇人在产血不洁之中，要家居三十三天。她洁净的日子未满，不可摸圣物，也不可进入圣所。

What it can do, when it is purified from all practical taint, is to help us to understand the general aspects of the world and the logical analysis of familiar but complex things.

当它从所有实际污点中被净化后，它能做的是帮助我们理解世界的一般方面以及对熟悉但复杂的事物的逻辑分析。