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。
You apply a force and the material will resist it until you have a force great enough to break the chemical bonds.
为什么，这些化学键是什么？
换句话说就是化学键更强。
这种分子是由一群化学键连接而成的原子。
A molecule is a group of atoms held together by chemical bonds.
电流引起的化学键的分解或溶解过程。
Lysis of a bond produced by the passage of an electric current.
因此，如此强的化学键意味着更高的熔点，和沸点。
So strong bonds means high melting points and boiling points.
这种化学键称为配位键。
共聚是两种高聚物主链间的化学键联接。
Copolymer is where chemical combination exists in the main chain between two polymers.
这是一种非常特别的化学键，可能和你想的一样。
碳结构的强度来源于碳原子(想想金刚石)间强大的化学键。
The strength comes from the powerful chemical bonds that form between carbon atoms (think diamond).
手机发出的非电离辐射很弱，不足以断开化学键或破坏DNA。
The nonionizing radiation given off by cellphones is too weak to break chemical bonds or damage DNA.
盐很容易溶解于水，形成强有力的化学键，而这些键又不容易打破。
Salt dissolves very easily in water, forming strong chemical bonds, and those bonds are difficult to break.
本次其中考试涵盖了原子理论，量子力学理论和化学键。
The mid-semester exam covers atomic theories, quantum mechanics theories and chemical bonding.
体温下聚合物和水之间的化学键变弱，聚合物分子彼此更易于成键。
At body temperature, the polymer-water bonds weaken, and the polymer molecules prefer to bond with each other.
纤维活性染料来源于染料与纤维之间形成的真正化学键。
Fiber reactive dyes are from true chemical bounds between dyestuff and fiber.
在这个所谓的“燃烧四面体”中，热量打破了燃料的烃链上的化学键。
In this so-called "fire tetrahedron", heat breaks the chemical bonds of the fuel's hydrocarbon chains.
未来的章节包括化学键，化学计量学，溶液化学和热化学。
Future chapters include chemical bonding, stoichiometry, solution chemistry and thermal chemistry.
只有外层内的电子才会形成化学键，因此每一列中各元素化学性质均相似。
Only electrons in the outer shell can form chemical bonds, so the elements in each column are chemically similar.
当压力释放后，平面型化学键恢复，零散的碳原子又回到了它的柔软的玻璃形态。
When the pressure was released, the flat bonds returned, and the odd carbon turned back to its pliable, glassy form.
这种强度来自于碳原子间的化学键：这也是金钢石之所以坚固的原因。
That strength comes from the chemical bonds between carbon atoms: the same sort that give strength to diamonds.
如果你把它放到大气层上，一个光子，一个紫外光光子，有能量可以破坏它的化学键。
If you get some of these in the upper atmosphere, a photon, an ultraviolet photon, has the energy capable of breaking this bond.
由于氙是惰性的，不易与其他元素产生化学键，因此很容易纯化以进行同位素分析。
Being a noble gas, it resists chemical bonding with other elements and is thus easy to purify for isotopic analysis.
X射线吸收光谱的峰值能显示出目标物质的化学键的确切性质，从而显示其组织结构。
The peaks in the X-ray absorptionspectrum can shed light on the precise nature of the target substance'schemical bonds, and hence on its structure.
或者说，他们扳动了一个开关，改变了硅的电导率，而不需破坏表面上的任何化学键。
In other words, they flipped a switch, which allowed them to change the electrical conductivity of the silicon without making or breaking a single chemical bond within the surface.
终于在他点燃某种物质时，由于室温时聚合物分子与水分子之间存在的化学键，发生了这种情况。
In the substance he eventually lit on, this happens because at room temperature there are chemical bonds between polymer molecules and water molecules.
如果键能非常强，热能并不足以，打破这些化学键，破坏这些化学键，并使它们液化。
If the bonding energy is very strongly negative, thermal energy isn't great enough to disrupt those bonds and allow those bonds to be broken and then have fluidity.
但是研究者发现角质蛋白复合物的化学键保留的很少。 富氮层在两个化石上都有所发现。
But the researchers found chemical-bond fingerprints of chitin-protein complex in thin, nitrogen-rich layers in both fossils.
更重要的是，他们已经表明，这些氨基酸可以相互反应，形成与通常维持三维形状的蛋白质不同的化学键。
What's more, they've shown that these amino acids can react with each other to form a different kind of chemical bond to those which usually hold proteins together in their three-dimensional shape.
更重要的是，他们已经表明，这些氨基酸可以相互反应，形成与通常维持三维形状的蛋白质不同的化学键。
What's more, they've shown that these amino acids can react with each other to form a different kind of chemical bond to those which usually hold proteins together in their three-dimensional shape.
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