查询词典 null hypothesis

In fact all comments become null and void after 7days.

事实上，所有说过的话七天后就失效了。

When the program of economic instruments of regulation are null and void, it can only take the necessary administrative means.

当计划、经济手段的调节都无效时，就只能采取必要的行政手段。

The act of making null and void .

使某事在法律上无效。

The contract was null and void because it was not signed.

这个合同无效，因为它尚未签字。

Vars of type C cannot be assigned null class C!

瓦尔的C类是不可以转让的空C类！

The NullAvlNode class implements the null object design pattern. This simplified many of the algorithms.

NullAvlNode类利用了Null对象的设计模式，这将会简化一些算法。

Since a non-nullable value type can never be set to a null reference, when a class member of such a type is mapped to an XML element declaration, the

由于永远不能将不可为空值类型设置为空引用，因此，在将此种类型的类成员映射到XML元素声明时

According to the discussion of the last chapter, we make use of a class of Null Dirac structure on the product Poisson manifold T*M×g* to do the Poisson reduction.

为此，我们利用了T*M×g*上一类Null Dirac结构来做Poisson约化。

Each call to readdir returns a pointer to information for the next file, or NULL when there are no files left.

函数dirwalk是一个通用的函数，它对目录中的每个文件都调用函数fcn一次。

Returns the MIME type of the specified file, or null if the MIME type is not known.

返回指定文件的MIME类型，如果MIME类型为未知，则返回NULL。

There had been a moment during the breakfast meeting, though, after the backslapping and the small talk and when all of us were seated, with Vice President Cheney eating his eggs Benedict impassively and Karl Rove at the far end of the table discreetly checking his BlackBerry, that I witnessed a different side of the man.

那次早餐会期间，在表示过关心和寒暄以后，我们所有人坐了下来，我注意观察了一下，副总统切尼面无表情地吃着班尼迪克蛋（Eggs benedict，源自美国，以英式松饼、火腿、水煮蛋以及荷兰酱组合而成），卡尔。罗夫在餐桌的远端谨慎地经常查看他的黑莓手机，我目睹了他所不为人知的一面。

Talk Undelete failed; someone else may have undeleted the page first.

Talk 无法删除选定的页面或图像（它可能已经被其他人删除了）。