null是什么意思

网络释义

用法例句

The reason why null space occurs in statics estimation using Monte Carlo technique,and the solving method;

Monte Carlo技术估算静校正时产生零空间的原因及解决方法

Finally,Fisher discriminant minimal criterion is carried out in the null space and non-null space going between kernel-class scatter of feature space,to obtain the optimal kernel discriminant vectors.

首先利用核函数技术将原始样本隐式地映射到高维特征空间;然后在高维空间里利用再生核理论建立基于Fisher鉴别极小准则的2个等价模型;最后在该空间的核类间散布矩阵的非零空间和零空间中应用Fisher极小鉴别准则求取核鉴别矢量。

This paper discusses existence and expression formula of some {2}-inverses,which have appointed range null space.

研究了具有指定值域和零空间的某些{2}—逆的存在性,并且给出了表达式以及所需条件。

Nonlinear structural analysis algorithm based on the null space basis;

基于零空间基的非线性结构分析方法

Feature Extraction Method of LDA Based on Symmetrical Null Space Criterion

对称零空间准则下的LDA特征抽取方法

When this tensor vanishes, the space is calleda flat.

当这一张量为零时，空间叫做平直空间。

The Evolvement and Development of Retail Building and Space in the present age;

当代零售业建筑与零售空间的演变与发展

In Dimension Z, there are strange moments.

在零度空间中常有奇异的时刻。

Geometrical Particle Models in Lorentz Space L_4 on Non-null Curves;

Lorentz空间L_4中非零曲线的粒子模型

An Study on the Change of the Layout of Uurban Space of Wholesale and Retail Industry;

四大直辖市批发零售业空间迁徙研究

The Research on the Public Opening Space of the Large-scale Merchandise Architecture

大型零售商业建筑公共开放空间研究

There are a few books here and there, but apart from that the room is quite bare.

房间里只有零零落落的一点书，此外空空的什么也没有。

An intervening space or distance allowing free play, as between machine parts.

空隙，间隙允许自由运动所介入的空间或距离，如在机器零件之间的

This is the“ null zone,” and marks the shift from the third Dimension into the Fourth Dimension.

这是“零的地域，”从第三度空间转移到第四度空间的标记。

Zero Initialization of Spatial Data and Minimum Spanning Tree Algorithm in Presence of Arbitrary Obstacles

空间数据的零初始化与障碍空间下的最小生成树实现方法

Movement or space for movement, as of mechanical parts.

运动运动或运动的空间，例如机器零件的运动

ZERO ENERGY FERMION IN TOPOLOGICAL NONTRIVIAL SPHERICAL SYMMETRICAL FIELD ON MINKOWSKI SPACE

闵空间拓扑非平庸球对称场中零能费米子

The Research on the Outer Space of the Entrance of the Large-scale Merchandise Architecture;

大型零售商业建筑出入口外部空间研究

Spatial Location Analysis of Large Retail Stores in Wuhan;

武汉市大型零售商业设施空间布局研究

The Impact of B2C E-Business on Urban Retail Space in China;

电子商业对中国城市零售业空间的影响

Study on Retail Formats Spatial Structure of Shanghai Central District;

上海市中心城区零售业态空间结构研究

The Positive Cone and Semi-order Yielded by the Bounded Linear Functional in Banach Spaces;

Banach空间上非零有界线性泛函导出的正锥与半序