查询词典 null and void

The apparatus use Lm336 as constant voltage source, and it been converted to constant - current source by amplification, which provide current for the Hall probe. The non-idiostatic offset circuit use the bridge method to offset the circuit. So while the magnetic density is null, the output voltage of Hall probe is null too.

仪器采用恒压源经过放大器转换为恒流源，为霍尔探头提供工作电流；不等位电势补偿电路采用桥式补偿网络，补偿电压通过调节可变电阻获得，实现霍尔电势的幅值补偿，使外磁场为零时，霍尔探头输出电势为零；磁通电路主要提供对样品的磁特性测量，它由测量线圈和积分器组成。

As we all know, it is equivalent to the null controllability of a cascade system governedby two linear degenerate parabolic equations. Next, we study the null controllability of acascade system governed by a semilinear degenerate parabolic equation and a semilinear heatequation.

众所周知，这等价于两个线性退化抛物方程构成的耦合系统在单个控制作用下的零能控问题；接下来我们又考虑了一类半线性退化抛物方程与半线性热方程构成的耦合系统的零能控问题。

The relations among three kinds of structural characteristics of fuzzy measure:(1) pseudometric generating property;(2) pseudometric generating property of type p;(3) null-null additivity,and the convergence for sequence of measurable function on semi-continuous fuzzy measure space are discussed.

李军讨论了下半连续模糊测度的3种结构特性：(1)伪距离生成性质；(2)p类型伪距离生成性质；(3)零-零可加性与半连续模糊测度空间上可测函数序列的收敛性之间的关系。

In other words, if you use an α level of .01, you will fail to reject the null hypothesis, and your confidence interval would contain the null value.

换句话说，如果你使用α水平为。01，你就不能拒绝零假设，你的置信区间将包含零值。

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。

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。

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。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？