查询词典 null algebra

Firstly,we discuss whether the proportion of null hypothesis could be estimated, and we give the condition of the identification of the proportion of null hypothesis.

首先，我们对原假设比例的可估性进行讨论，给出了原假设比例可估的条件。

Revankar S%Yegnanarayana B Machine recognition and correction of freehand geometric line sketches null , 1991,null

刘伟%查建中%徐晓慧%鄂明成用RCR特征和NN识别实时手绘工程草图 10.3321/j.issn：1003-9775.2003.06.010 计算机辅助设计与图形学学报， 2003，06

To ensure that the aName parameter is a pointer, use the macro NS_PRECONDITION to warn if null, follow with a null test in the line below, and return the error result code NS_ERROR_NULL_POINTER.

然后是个判空测试，在指针为空时返回错误码NS_ERROR_NULL_POINTER。

The RELEASE macro just makes sure the pointer isn't NULL , calls the release method of the interface and then sets the pointer to NULL .

RELEASE宏判断指针为非空后调用接口的release方法将指针置空。

To emulate null-modem connection Virtual Null Modem can be effectively used.

学习零调制解调器连接的虚拟零调制解调器可以有效运用。

Virtual null-modem allows user emulate virtual null modem connection and run the two applications simultaneously on the same computer.

虚拟空调制解调器允许用户学习的虚拟空调制解调器连接和运行两个应用程序，同时在同一台计算机上。

The most expensive null modem cable is the null modem cable suitable for full handshaking.

最贵的无猫电缆是适用于全握手信号的无猫电缆。

The main purpose of this null modem cable is to let well defined software think there is handshaking available, with a null modem cable which has no provisions for it.

这个电缆的主要目的是让设计良好的软件认为握手正常。

SQL NULL values are mapped to and from Python's NULL object, None.

SQL 的 NULL 值被映射为 Pyhton的 NULL 对象，也就是 None。

Once you have inserted a null into the container, you must always check if the value is null before accessing the object

一旦你向容器插入了一个 null，你就必须在访问该对象前检查它是否为 null

Sodium citrate; calcium carbonate; calcium hydroxide; potassium bicorbonate; magnesium carbonate; ferrous sulphate; Zinc sulphate; copper sulphate; manganese sulphate; potassium iodide; sodium selenite.

柠檬酸钠；碳酸钙；氢氧化钙；碳酸氢钾；碳酸镁；硫酸亚铁；硫酸锌；硫酸铜；硫酸锰；碘化钾；亚硒酸钠。

All this to say that I'm glad filmmaking hasn't become completely ironic. I can enjoy an ironic film as much as the next person, but they usually involve a message of some sort. One that's delivered in a smirkingly clever way that requires little in the way of talent.

所有这些都是说，我很高兴电影制作没有变成完全讽刺艺术，我可以和下一个人一样享受讽刺电影的乐趣，虽然他们经常会被划归到一定级别，技术方面不需要很高的才能。