duplication
n. 复制,复印;重复;成倍,成双;副本,复制品;(染色体中DNA的)重复段
例句
There could be a serious loss of efficiency through unnecessary duplication of resources.
不必要的资源重复会导致严重的效率损耗。
《柯林斯英汉双解大词典》
It turns out, though, that there are various degrees of genetic duplication.
然而,事实证明,有不同程度的基因复制。
Little reward accompanies duplication and confirmation of what is already known and believed.
重复和确认人们已经熟知和确信的事情是没有意义的。