Work, school, or both take up so much time and energy, that it seems like there's little left over for fun and relaxation.

工作、学习(或者两者一起)占据了你太多的时间和精力，以至于看上去留给休息和玩乐的所剩无几。

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The distribution mechanism of dielectric relaxation time in such system deponds mainly on the variation of the energy of the hydrogen bonds between water molecules and wood.

木材—吸附水系的介电弛豫时间分布机构是：因水分子同木材之间形成的氢键结合能呈某种分布所致。

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The effects of loading rate, interfacial adhesive energy, relaxation time of matrix material, average size of particles, and the particle-size dispersity on the energy dissipation are discussed.

在此基础上，计算了材料中的粘性耗散功和损伤耗散功，并讨论了加载速率、界面粘结能、基体材料的松弛时间、平均粒径和粒径分散度等对这两种耗散机制的影响。

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