Using dlsym to extract a hidden symbol returns NULL.
使用dlsym提取一个隐藏的符号将会返回NULL。
In statistical terminology, this sampling variability explanation is called the null hypotheses. (the null hypothesis is designated by the symbol Ho.)
在统计学术语中，这个抽样可变性说明被称为虚假设(nullhypothesis)。
Many SSL certificate companies will allow people to attach a programming symbol called a "null character" into the Web address onto the certificates they receive.
许多SSL证书的公司将允许人们重视编程象征所谓的“空字符”进入网址上他们获得的证书。
Many SSL certificate companies will allow people to attach a programming symbol called a "null character" into the Web address onto the certificates they receive.
许多SSL证书的公司将允许人们重视编程象征所谓的“空字符”进入网址上他们获得的证书。
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