这一过程是由粘附在基因上并能改变基因活性的“化学开关”所控制的。

The process is controlled by chemical switches that stick on to genes and alter how active they are.

youdao

类型的生成是面向对象设计的一个重要方面，也是模块化、灵活性和封装性所必需的。

The generation of types is an important facet of object-oriented design and is necessary for modularity, flexibility, and encapsulation.

youdao

我将在本文的以后部分讨论该灵活性所造成的结果，并提供开发有效的SQL的准则。

I'll discuss the ramifications of this flexibility later in this article and provide guidelines for developing efficient SQL.

youdao

There are more than 20 amino acids that make up the biological polymers called proteins, so there are 20 choices of each amino acid at a position on a protein.

而那些称为蛋白质的生物活性多聚体,是由二十种不同氨基酸所构成,因此每个蛋白质的,任意位点都有多达二十种氨基酸可供选择

耶鲁公开课 - 生物医学工程探索课程节选