This routine initially checks to see if NULL manager entry point vector, mgr_epv, was passed.
这个例程首先检查传递的管理器入口点向量mgr_epv是否是NULL。
For those methods to accept no argument would require a null where point was specified.
对于不接受参数的方法，在指定point的地方需要一个null。
Also, many times member variables of a class that point to other classes simply need to be set to null at the appropriate time.
此外，您常常需要在适当的时候将指向其他类的类成员变量设置为null。
When null, the data point takes up no space just as if the column didn’t exist.
当值为null时，数据指针就完全不占用空间，就像这个列不存在一样。
The null must intersect with the emitter at the point where you want to emit particles.
这个空物体必须和发射器有交叉的点以便于从这些部位发射粒子。
The metaphase plate would thus be the null point between two equal but oppositely directed and acting groups of kinetochore tubules.
中期板大概是两个相等而方向相反的放射状著丝点微管群之间的平衡点。
By means of the null point, growth index analysis and displacement distance plot, the authors discussed the process of negative structure inversion.
采用零点、距离位移曲线和生长指数等定量分析方法，讨论了断裂的构造负反转过程。
The factors which have influence over the null depth and zero point position of two basic microwave antenna difference beams are analyzed theoretically from the point of engineering application.
从工程应用的角度出发，在理论上分析了影响两种基本类型微波天线差波束的零值深度、零点位置等指标的因素。
It can constrain frequency response of filter Banks to form null at zero frequency point and to obtain minimum side lobe area.
它可强制滤波器组的频率特性在零频形成零点并使旁瓣面积最小。
A linked list is given such that each node contains an additional random pointer which could point to any node in the list or null.
给定一个链表，其中的节点包含一个额外的随机指针，可能指向链表中的任意一个节点或者为空。
A type of capacitive microsensor whose null point and gain can be regulated is introduced here.
文中介绍一种可调零点和增益的电容式微型传感器。
There is no point in setting the fields to null and do similar silly things.
是毫无意义的字段设置为空时，做类似的蠢事。
There is no point in setting the fields to null and do similar silly things.
是毫无意义的字段设置为空时，做类似的蠢事。
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