This material property is called elasticity, If a material, were not elastic and deformation were present in the structure after removal of the load, repeated loading and unloading, eventually would become useless.
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If a material goes through a physical change, it is still the same material.
如果一种材料经历了物理变化,它的性质不变。
If a material contains many delocalized bonds, it is likely to be soft.
如果材料包含许多离域键,则它可能会很软。
If you understand the material and have the ability to articulate your thoughts, they should be a breeze.
如果你理解这些材料并且有能力表达你的思想,那就应该是轻而易举的事了。
If there is only a small amount of rot, the dead material can be cut away.
VOA: special.2010.06.08
They really don't.So, if everybody masters the material A I can say A's on the house.
他们真的不知道,如果每个人都掌握了知识,那么我敢说,人人可得。
But because in many cases we can reasonably either model or measure equations of state, collect data for a material for its temperature, pressure, volume relations, then in fact if we can relate all these quantities to those then in fact we really can calculate essentially all of the thermodynamics. For the material.
但是因为在很多情况下,我们能够合理的给出状态方程的模型,或者通过收集一个物质的,温度,压强和体积之间的关系,来测量其状态方程,所以实际上我们可以给出压强等物理量,和热力学势之间的关系,并计算出所有的热力学势,对于给定的物质。
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