nullity
n. 无效；无价值的事物或人；[数] 零度；退化阶数
复数 nullities
例句
In Section 4, we study the nullity functions of poset matroids.
在第4节研究了偏序集拟阵的零度函数。
The problems of rural collective land ownership are nullity of subject, unstability of object and incompletion of contents.
我国集体土地所有权存在的问题主要有：主体虚位性、客体不稳定性以及权利内容的不圆满性。
The nullity and voidness of the clauses set out in the preceding paragraph shall not prejudice the validity of the other clauses of the contract.
前款规定的合同条款的无效，不影响合同其他条款的效力。
