查询词典 null function

No fragments were amplified from some loci of EST-SSRs, which may suggest the loss of these loci in mirror carp genome or sequence divergence at the primer binding sites. These null alleles may result from selection because functional genes are under more selection pressure than non-encoding loci. Overall, population genetic variation is high for each of the five mirror carp, and the differentiations are also significant among populations.

3在与功能基因相关的多个微卫星基因座位上，扩增产物呈现不同程度的缺失现象，这些无效等位基因的产生可能与结构基因在育种中受到人工选择的影响较大有关。

As an example, lets retrieve the one document with name=='mongo'. There are many ways to do it, including just calling next on the cursor (after checking for null, of course), or treating the cursor as an array and accessing the 0th element.

例如，我们可以通过很多种方式检索一个名称为'mongo'的document，包括在游标中调用next函数(当然，要验证完是否为null之后)，或者把游标看做一个数组然后访问数组的[0]下标元素。

Monteith J L Fifty years of potential evaporation Dublin , 1994,null

刘昌明%洪嘉琏%金淮农田蒸散量的计算北京：气象出版社， 1991，null

Karim Chatti%KYONG K Y Dynamic analysis of multi-layered pavement system under moving load SAE 952634 , 1995,null

成祥生 弹性地基板由运动载荷引起的动力反应应用数学和力学， 1987，4

Inhibition of Nude1 phosphorylation using either null mutant or Cdk5 inhibitor roscovitine induces neuritic swellings in cultured neurons.

在哺乳动物中，有越来越多的证据表明这条通路对于有丝分裂，神经元的分化和迁移是至关重要的。

Inside is something like this, red/brown one is Live line, blue one is Neutral/Null line and green one is earth line.

里面大概是这样，红/褐色的是火线，蓝色是中线而青色是地线。

If no control with the integer ID given by the nID parameter exists, the value is NULL.

如果没有控件具有nID给出的整数ID，则返回NULL。

Here, nl is a null-terminated array of nlist structures.

这里，nl是一个null结尾的nlist结构数组。

If the message is sent by the current process, it is nonzero; otherwise, it is NULL.

如果消息是由当前进程发出的， wParam 为非0；否则，为空。

In fact, all comments become null and void after 7 Days.

事实上，所有的话7天后就无效。

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。