查询词典 null algebra

The LM statistic follows chi square distribution with q degrees of freedom under the null.

LM统计量在零假设下服从 q个自由度的卡方分布。为什么乘上n-q而不是n？

The sort of circumlocution is required in nearly every use of a method that returns null in place of a zero length array.

类遁辞在几乎在零的长度列阵位置退回零位对方法的每个用途需要。

A 1172 bp fragment was detected for Wx-7A gene using dominant marker primer from the Wx-A1 normal wheat, a 593 bp and a 574 bp fragment were detected using codominant marker primer from the Wx-A1α normal and Wx-A1 null wheat, respectively.

STS标记结果中，Wx-7A位点的显性标记引物在野生型中扩增出一条1172bp的特异带，即Wx-A1α基因出现；Wx-7A位点的共显性标记引物在野生型中扩增出一条593bp的特异带，在缺失类型中扩增出一条574bp的特异带。

Robertson J L%Thompson N P%Wilson L W Combinatorial solid geometry target description standards AD-A306858 , 1996,null

朱文和%赵有守%李向东球形破片侵彻有限厚靶板的模型建立与计算弹道学报， 1997，3

If lpApplicationName is NULL, the first white space-delimited token of the command line specifies the module name.

如果lpApplicationName为空，以空格分隔命令行得到的首个标记指出模块名。

Returns the currently executing interactive command string of the local database session, or NULL if it can't be determined.

返回当前本地数据库会话里正在执行的交互命令，如果无法判断，就返回 NULL。

The asymptotic property of the modified supremum-type statistic and the integral-type statistic under the composite null hypothesis are derived.

对上界型检验统计量，研究了与之有关的一个极限性质；对积分型检验统计量，证明了其在复合零假设下的渐近分布。

The binary + operator performs string concatenation when one or both operands are of type string. If an operand of string concatenation is null, an empty string is substituted. Otherwise, any non-string argument is converted to its string representation by invoking the virtual ToString method inherited from type object.

由此可知 C#的加号运算子预设就支援字串串加的功能，只要一群字串串接的物件中只要有一个以上的物件型别是「字串」的话，就会全部变成「字串相加」，只要遇到「非字串」的物件，预设会使用继承至 object 物件的 ToString 方法进行转型，让所有物件都变成「字串」后进行相加动作。

Concha F%Barrientos A%Munoz L A phenomenological model of a hydrocyclone London , 1996,null

刘晓敏%蒋明虎脱油型水力旋流器空气核的稳定性分析石油学报， 2004，6

The null hypothesis is that the efficient estimator is a consistent and efficient estimator of the true parameters.

2， 如果上述理论逻辑通的话，将内生变量 X 作为解释变量， IV 和其他变量（ X2）作为解释变量，看 IV 是否显著，它应该显著。

In this new architectural plan the Garden of Golgotha came to be at the centre of the new city.

Aelia 是高举他自己，并在此城内朝拜罗马诸神。

The continuous nature of peat accumulation means that terrestrial coaly rocks may provide a higher resolution and more complete record of base-level change than the time-equivalent shallow-marine strata, thus enabling the identification of highfrequency cycles that are not recorded in themarine strata.

泥炭积累的持续性质的手段，陆地coaly岩石可提供较高的分辨率和更完整的记录基准面变化的影响时，相当于浅海阶层，从而使确定的高频周期，不记录在themarine 阶层。