细胞每复制自己一次(细胞在死亡之前都会如此)，其端粒就会缩短，就像鞋带的塑料头会磨损一样。
Each time a cell replicates itself (as it does before it dies), the telomeres shorten, like plastic tips fraying on the end of shoelaces.
将内容从指定的标头集合复制到此实例。
Copies the content from the specified header collection to this instance.
可用冲头作电极，在阴模板上复制其形状，并留有必须的间隙。
A die punch can be used as the electrode to reproduce its shape in the matching die plate, complete with the necessary clearance.
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