This non sequitur invalidates his argument .

他不根据前提推理因而论证无效。

It invalidates any contract to which an illegal immigrant was party .

它使任何由非法移民作为当事人的合同归于无效。

This study invalidates their earlier research .

这项研究证明他们先前的调查是错误的。

This action is necessary because anything that alters the binary after it is signed invalidates the signature .

这一操作是必需的，因为签名后对二进制文件所做的任何更改都会使签名无效。

But if the assembly you are testing was signed with a strong name , the code modification caused by instrumentation invalidates its signing .

但如果测试的程序集是用强名称签名的，则检测所导致的代码修改将使该程序集的签名无效。