首先，我们构造以目的和背景知识为双条件的条件句系统akc，给出它的一些证明论结果。

Firstly, we construct the conditional system AKC with double conditions for aim and background knowledge, give some results of its proof theory.

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合成碱绿色4的最佳条件包括：尿素和氯化锌作为催化剂，四氢呋喃和双色。

The optimal conditions for synthesis of alkali green 4 include the carbamide and zinc chloride as catalyst, chloranil and bichrome.

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使用单等于号来向变量赋值，而不是像在前一个条件中那样使用双等于号 (==) 来比较值。

Use the single equal sign to assign a value to a variable, unlike the double equal sign (==), as in the previous condition, which compare the values.

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If I took two double stranded DNA molecules and I exposed them to certain conditions that caused them to denature, that means its native structure falls apart.

假如我把两条DNA双链,放在特定的条件下,使它们变性,变性表示使它们的原始结构分开

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That tells you something about the physical chemistry of the molecule; that it's these hydrogen bonds that hold the double strands and I can break those down under certain conditions.

我们从中可以知道一些,DNA分子的理化特点,双链是由氢键连接在一起,在一定条件下这些氢键可以断裂

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