In a sense, substitution matrices code up chemical properties.
在某种意义上，替换矩阵是对化学属性的编码。
In place of combinations of rare-earth compounds, its unique chemical markers are short stretches of DNA, each with different sequence of genetic code.
用特异化学标记的短链DNA取代了混有稀土的复合物，每一个链有不同顺序的基因编码。
So, in principle, the protein can record the order of the bases (the chemical “letters” that carry the genetic code) which make up the molecule.
因此，原理上蛋白质能记录下组成DNA分子的碱基序列（一种带着基因编码的化学“字符”）。
Such "epigenetic" chemical changes don't change the genetic code, but can mean that a gene's function is increased or decreased, or switched on or off.
这种“表现”化学变化并不改变遗传密码，但可能意味着一个基因的功能被加强抑或减弱、被打开还是被关闭。
The present microbead encoding methods include chemical and physical encoding, but both of them are limited in application because of such problems as code stability, reaction compatibility and cost.
目前常见的微球编码方法有化学编码和物理编码两大类，但在应用中仍存在诸如编码稳定性、反应兼容性和成本等方面的问题而受到限制。
Flame Arrestor breather valve should be equipped on the top of tank for type A B liquid according to GB50160-92, "Fire prevention code of petrol chemical enterprise design".
根据国家标准《石油化工企业设计防火规范》（GB50160-92）之规定：“储存甲、乙类液体的固定顶罐，应设阻火器和呼吸阀”。
These can attach themselves to cytosine , one of the four chemical bases that form the "letters" of the genetic code.
它们可以附在胞核嘧啶上，胞核嘧啶是组成基因代码的“字母”的四种碱基数之一，帮助调控转录的过程。
Is code of Sichuan chemical industry occupation Tec a number?
四川化工职业技术学院的代码是多少？
Is code of Sichuan chemical industry occupation Tec a number?
四川化工职业技术学院的代码是多少？
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