查询词典 null point

During the measurement of the dynamic laser goniometer, it's very important to have a collimation device named null-indicator to establish an accurate zero point, the high speed response and the accuracy of NI are very important.

在激光陀螺测角仪的测量过程中，为了建立一个可靠精确的零点，提出一种特殊的瞄准指示装置--指零仪光路部分的设计方案。

Through calculating the fundus of the null space of matrix A in the constraint,there exists at least one feasible descent direction at every nonstationary point and every iterate generated by the methods is feasible so long as the initial iterate is feasible.

通过计算约束条件中矩阵A的零空间的基底，使得在每一个非稳定点处至少存在一个可行的下降方向，并且在初始点是可行点的条件下，该算法产生的每一个迭代点都是可行点。

The string pointers in the structure may point to a null string which indicates that the value is not available.

结构体中的字符串指针可能指向一个空字符串，这表明此值不可用。

Each theme has a next pointer, which should either be NULL or point to another theme in t he same file.

usplash 主题库在一个连接的列表里可以容纳多个主题，美国主题有一个 next 指针，它要么为空，要么指向另一个在同一文件中的主题。

If the pLast is not null, then the user is dragging, and the mouse has moved from itsprevious point.

不为空，那么用户正在拖动，鼠标从前一个点移动到现在的位置。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。