So, bonding orbitals are down here.

所以成键轨道在下面。

youdao

Reading aloud to them just before bedtime is a great idea, because it quiets them down after a day of activity, it gives you quality bonding time together, and it gets them into the habit of reading.

睡前朗读一本书很不错，因为这会让他们在一天的活动后安静下来。

youdao

When bonding temperature was 1403 K, reaction layer grew fast at first and then slow down with the increase of bonding time.

在连接温度为1403 K的条件下，随着连接时间的增加，界面反应层厚度先快速增加，再缓慢增加。

youdao

So since we have two lone pairs, we're going to be pushing down even further on the bonding electrons, so we're going to smoosh those bonds even closer together.

因为我们有了两个孤对，我们会把成键电子,更加向下压，所以我们把这些键更加紧得推到一起。

麻省理工公开课 - 化学原理课程节选

So what we see is on ammonia here, 107 we know that it's less than a 109 . 5, it's actually 107, so it's less than a 109 . 5, because of that lone pair pushing down in the bonding electrons.

我们看到在氨分子里，我们知道它比１０９．５要小，它是，所以比109。5要小，因为孤对会把成键电子向下推。

麻省理工公开课 - 化学原理课程节选

That is what gets crunched down to covalent bonding.

这就要归结与共价键。

麻省理工公开课 - 固态化学导论课程节选