三个控制键用于控制舱内的灯光颜色和氛围,为用户量身定制的网状座椅能够最大地保证长时间坐立的舒适性。
The three dial control lets you control the color and ambiance of the light within and the custom made rubber mesh seat ensures optimum comfort during long sittings.
本文描述了实现作为主键的代理键的三种方法。
This article described three approaches to implementing a surrogate key as primary key.
相反,石墨的柔软和易滑脱特性源于它的碳原子形成了“平面的”化学键,导致了三明治式的层片状原子,而层间吸引力很微弱。
By contrast, graphite is soft and slippery because its carbon atoms form "flat" bonds, resulting in sandwiched sheets of atoms that weakly attract one another.
And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.
而我们以后还会看到三键,举例来说,应该更强,相较于相应的双键,或者相应的单键来说。
so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.
因此你能看到,反键轨道上有两组,三组成键,得到一组净成键,所以成的是单键。
So let's take the case of acetylene where we have two carbon atoms that are going to be triple bonded to each other, each are bonded to a carbon and then to one hydrogen.
让我们来看一看乙炔的例子,我们有两个碳原子,成三键,每个碳和一个碳一个氢相连。
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