查询词典 projective

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。

American mathematician noted for his work on projective geometry and topology.

维布伦，奥斯瓦尔德1880－1960美国数学家，以其在射影几何学以及拓扑学上的研究而闻名

"Projective geometry has opened up for us with the greatest facility new territories in our science, and has rightly been called a royal road to its own particular field of knowledge.

"，"射影几何以最大的简便为我们打开了我们科学中的新领域，它恰如其分地被称为通往它自己的独特知识领域的最佳道路。

Looking to bounce back from defeat against Cesena last weekend, the Calabrian boss will be sticking to his tried and tested 4-3-3, with Lopez and Sedivic joined up front in Giampaolo's absence by either Nanni or Plasmati.

鉴于上周末对切塞纳的比赛中反败为胜，这支南方球队将会更坚持其一贯而有效的4-3-3阵型，洛佩斯和塞德维奇将取代受伤缺席的詹保罗，和纳尼或者帕斯马蒂中的一个搭档锋线。

Meanwhile, their exposure to the more freewheeling ways of the West broadened dramatically.

另外，西方较自由的生活方式对年轻人的影响增大。