查询词典 null function

By analyzing and comparing the monitoring technique of rotary kilns axis at present at home and oversea, this paper puts forward a brand-new monitoring method of more advance and more scientific, that is the keyway-phase measure in direction of null displacement of the center of gyration measuring.

本文通过对国内外现有回转窑轴线临测技术的分析和对比，提出了一种更先进、更科学的全新的监测方法，即回转中心测量零位移方向键相法。

The one-way ANOSIM test was used to test the null hypothesis of difference between cephalopod assemblages.

东海区头足类种类丰富[2]，长期以来一直是东海区的主要捕捞对象之一。20世纪70年代以前主要利用曼氏无针乌贼，到了20世纪90年代以

The minimum size of the character buffer in characters. This value does not include space for a null terminator.

得到buffer的最小长度，当然这是由我们自己设定的一个参数，其原型定义如下

If that character is not NULL the string is not a number.

如果不为NULL字符字符串不是一个数字。

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。

Pachomius manual labour was organized as an essential part of the monastic life; and since it is a principle of the monks as distinguished from the mendicants, that the body shall be self-supporting, external work of one sort or another has been an inevitable part of the life ever since.

根据圣pachomius体力劳动组织作为一个重要组成部分寺院生活；以来，这是一个原则的和尚，作为有别于乞丐，该机构应自支撑，对外工作的这种或那种已一个必然的一部分，生活至今。

In order to study the effects of parametrical rolling on the ship movement and tilts, in allusion to ship's navigating in regular following waves, the equation of ship rolling motion is transformed into normal Mathieu equation by proper variable replacement when strong parametrical excitation in restoring moment varied according to sine or cosine wave.

为研究参数横摇对船舶运动和倾覆的影响，通过对船在规则波上随浪航行时，恢复力矩中出现的1个以正余弦规律变化的强参数激励项进行适当的变量置换，将船舶的横摇运动方程转换成标准形式的Mathieu方程。