单语范例（未经PONS编辑处理）
So the symmetrization (or anti-symmetrization) must be introduced to eliminate this redundancy in the first quantization description.
en.wikipedia.org The book contains short descriptions of supposed, rumoured or lost books, pictures, and objects.
en.wikipedia.org There is no description of these bones, making them seem unimportant.
en.wikipedia.org The description here is with reference to nouns, pronouns, and verbs.
en.wikipedia.org Two different full descriptions of the physical system with related systems of equations can be found hereafter and hereafter: they give the same results.
en.wikipedia.org