covalent bonds

常見例句

And the key word for covalent bonds is the idea of being shared.
而關(guān)于共價(jià)鍵最關(guān)鍵的一點(diǎn)就在于共用的概念。
So, that's basically the idea of how we are going to be thinking about covalent bonds.
那么，這就是我們所應(yīng)該想到的基本思路,在考慮共價(jià)鍵時(shí)。
At this level, basic concepts such as bonding, ionic and covalent bonds are briefly introduced to students.
在這一級(jí)，基本概念，如氫鍵，離子和共價(jià)鍵簡(jiǎn)要介紹給學(xué)生。

There's not actually chemical covalent bonds that are formed but it's a non-covalent interaction, usually dominated by hydrogen bonding.
所以配體和受體之間不生成共價(jià)鍵,這是一種非共價(jià)化合反應(yīng),它們通常以氫鍵相聯(lián)
耶魯公開課 - 生物醫(yī)學(xué)工程探索課程節(jié)選
And when we talk about covalent bonds, there's 2 properties that we'll mostly focus on, and that's going to be thinking about the bond strength or the energy by which it stabilized when it bonds.
而當(dāng)我們討論共價(jià)鍵的時(shí)候，有兩點(diǎn)特性是我們最關(guān)注的，那就是鍵的強(qiáng)度,或者說(shuō)成鍵之后能量降低了多少。
麻省理工公開課 - 化學(xué)原理課程節(jié)選
So as we said when we first introduced covalent bonds, it's a sharing of electrons, but it's not always an equal sharing.
當(dāng)我們剛開始介紹共價(jià)鍵的時(shí)候，我們說(shuō)過(guò)電子是被共用的，但是共用卻不一定是均等的。
麻省理工公開課 - 化學(xué)原理課程節(jié)選

They performed this trick, as they explain in the journal Langmuir, using a substance called phenyl azido, which readily forms covalent bonds with its neighbours when exposed to ultraviolet light.
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Accordingly, Dr Lin and his colleagues tried to build up covalent bonds between the layers of a water-repellent, or hydrophobic, material called cellulose acetate butyrate, which is used to make water-resistant fabrics.
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