You apply a force and the material will resist it until you have a force great enough to break the chemical bonds.

你施加一个力，材料就会抵抗它，直到你有一个足够大的力来打破化学键。

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A molecule is a group of atoms held together by chemical bonds.

这种分子是由一群化学键连接而成的原子。

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The strength comes from the powerful chemical bonds that form between carbon atoms (think diamond).

碳结构的强度来源于碳原子(想想金刚石)间强大的化学键。

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There's not actually chemical covalent bonds that are formed but it's a non-covalent interaction, usually dominated by hydrogen bonding.

所以配体和受体之间不生成共价键,这是一种非共价化合反应,它们通常以氢键相联

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So, in talking about covalent bonds, we should be able to still apply a more general definition of a chemical bond, which should tell us that the h 2 molecule is going to be lower in energy than if we looked at 2 separate hydrogen atom molecules.

那么，既然提到了共价键，我们应该还可以,给化学键下一个更普遍的定义,那就是告诉我们氢分子能量应该更低,与两个分开的氢的单原子分子相比。

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Ionizing radiation can bring this about by breaking chemical bonds in atoms and molecules.

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Infra-red is chosen because chemical bonds tend to vibrate at the same frequencies as infra-red light.

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In the substance he eventually lit on, this happens because at room temperature there are chemical bonds between polymer molecules and water molecules.

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