心理学上的很多研究都支持“自我损耗”的概念，即必须抑制自己消耗你的脑力并使得对其他事运用自制更加困难。
A lot of research in psychology has supported the concept of "ego depletion" — that having to restrain yourself wears out your brain and makes it harder to exert self-control over something else.
布莱克本和卓斯塔克测定，端粒中一段特殊的DNA序列在细胞分裂染色体自我复制时保护了染色体免受损耗。
Blackburn and Szostak determined that it was a specific DNA sequence in the telomeres that kept chromosomes from fraying whenever they were copied when a cell splits in two.
泵是自我启动式的，可以进行空转，并不带来任何的损耗，非常适合于泥浆和胶黏性液体，不带有阀门和密封。
According to Barnant, the pumps are self-priming, can operate dry without damage, are suitable for slurries and viscous liquids, and contain no valves or seals.
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