查询词典 projective

We studied the properties of the projective cone in tensor vector space defined by Barker.

给出了张量空间中射影锥可分解的充分必要条件，并由此可得出有限维实空间中真正锥可分解的已有结论。

Line pencil ; projective comespondence ; conic

线束；射影对应；二次曲线

And the Montgomery method to realize point multiplication is also efficient by using projective coordinates to reduce the multiplication times and only one time of inversion been needed.

利用Fermatt小定理求逆，根据有限域上元素的乘法满足结合律和交换律，通过重新安排乘法和平方的顺序，可以减少乘法和平方的次数，比按照定义直接实现速度提高了6倍。

A useful concept,Foliage Projective Cover that means the percentage of the land covered by foliage,was introduced,it had some ecological significances and was suitable for describing horizontal character of plant community.

本文引入植物群落叶片投影盖度的概念，其含义是植物群落叶片覆盖地表的百分率，它具有生态意义明确、适于描述植物群落水平结构的特点。

Arid area ; Foliage projective cover ; Plant community ; Simulation model

干旱区；叶片投影盖度；植物群落；模型

Foliage projective cover ; NPP ; plant community ; the Ordos Plateau ; seasonal growth

叶片投影盖度；净第一性生产力；植物群落；鄂尔多斯高原；季节生长

Projective deformation ; railway surveying ; independent coordinate system mathematical model

投影变形；铁路测量；独立坐标系；数学模型

By this equality,we prove that the amplitude of a compact DG module M over a cohomologically bounded DG algebra A is just the sum of the amplitude of A and the projective dimension of M.

对于一个同调有界的连通DG代数上的紧的DG模，我们由此等式可得其振幅与DO代数的振幅的差恰是它的投射维数。

We shall interrupt the history of projective geometry.

我们要把射影几何的历史断开。

Approaches based on projective geometry are often associated with reference points given as prior knowledge.

其中，基於透视投影几何的方法，常与参考点所提供的已知资讯有所关连。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。