The center of excess negative charge on all of the dipoles is at the very center of the molecule.

多出来的键,的负电荷中心都集中在,分子的正中间。

麻省理工公开课 - 固态化学导论课程节选

Steroids are small molecules - much smaller than proteins - smaller molecules that tend to be hydrophobic or lipid soluble.

类固醇是小分子物质,比蛋白质小得多,这类小分子是非水溶性的,或者说是脂溶性的

耶鲁公开课 - 生物医学工程探索课程节选

All of these multiatomic moieties are nonpolar.

这些分子由多原子组成，但都是非极性的。

麻省理工公开课 - 固态化学导论课程节选

And I picked looking at methane so we could see if there are other factors that we're not considering, that we need to maybe tweak our model a little bit, and I think we'll find that we do if we take a look at a polyatomic molecule, methane, CH4 so c h 4.

我选择甲烷这个例子，我们可以看到,如果有一些我们没有考虑到的因素，我们需要修改一下我们的模型，我们看一看,甲烷CH4这个多原子分子，就会知道这一点，甲烷。

麻省理工公开课 - 化学原理课程节选

What's hanging off of the side of this long molecule that's formed by polymerizing nucleotides are - is this base unit.

在这条由多聚核苷酸,构成的长链分子,一侧悬挂着碱基单位

耶鲁公开课 - 生物医学工程探索课程节选

The rest of this, this sort of beige part of the molecule here is called the polylinker part.

剩下这部分,这部分淡棕色的分子叫做多克隆位点

耶鲁公开课 - 生物医学工程探索课程节选

This represents the upright struts on a ladder that I showed you before, it represents this backbone that's shown by - that's formed by polymerizing the pentose's together through phosphate's always going 5' to 3', 5' to 3'.

线条代表梯子,上下的支柱 之前给你们演示过,代表由多聚戊糖分子,通过磷酸基从5'端向3'端方向,连接起来的主链

耶鲁公开课 - 生物医学工程探索课程节选

You've got to be able to make this stuff and you've got to be able to make it in large quantities and we'll talk about how to make nucleic acids in large quantities a little bit later in the lecture.

首先你必须能够合成这种分子,合成出的分子数量必须足够多,我们待会儿会讲到,如何大量合成核酸分子

耶鲁公开课 - 生物医学工程探索课程节选

When these nucleotides get polymerized to form a long DNA molecule they all get polymerized in exactly the same way, the chemistry is the same.

当这些核苷酸多聚化,形成一条长链DNA分子时,它们的聚合方式和,化学结构都完全相同

耶鲁公开课 - 生物医学工程探索课程节选