查询词典 conic function

Line pencil ; projective comespondence ; conic

线束；射影对应；二次曲线

The computational methods of line element conic curve s tangent point decided by any line on projective plane is presented on the basis of this study.

从实际计算的角度出发，使用N矢量表示视平面上的点和直线，并由线素二次曲线的射影定义推导出线素二次曲线的N矢量方程；在此基础上，给出了射影平面上任意一条直线所确定的线素二次曲线切点的N矢量的计算方法。

The protuberance phenomenon in shape of conic or cylinder was discovered for the first time.

发现了ZnO压敏陶瓷中的锥状或柱状"突起物"现象。

Three schemes of blind signature are proposed based on the conic curve s over the residue class ring Zn.

基于环Zn上的圆锥曲线密码体制，提出了3种盲签名方案；方案的安全性基于大整数的分解困难性和求解环Zn 圆锥曲线上的离散对数问题的困难性。

In guide switch of the present invention, the rotor and the stator are made to have conic frustums to constitute close contact for close fit, rather than loose fit, and this can eliminate spark during high-power microwave transmission, reduce the transmission loss caused by heating and reflection in the switch , and improve greatly the microwave transmission performance.

本发明通过把波导开关的转子和定子做成同锥度的锥形圆台面，使它们之间构成紧密接触，改动配合为紧配合，从而消除高功率微波传输时的打火现象，同时减小开关的传输损耗，减小开关的发热现象，降低反射，使微波传输性能大为改善，从而使这种开关能在高功率甚至超高功率微波系统中应用。

It thinks that Complete Principle of Measurement inherited the Writing Style of Elements. Secondly, it is taken out five key parts——plane geometry, solid geometry, conic, spherical trigonometry and spherical astronomy part——to comprehend. The main contents of mathematics and astronomy involved in Complete Principle of Measurement have been set up respectively in accordance with the characteristics of their subject.

其次，又按照学科分布从中抽出平面几何、立体几何、圆锥曲线、球面三角和球面天文等五部分内容进行重点解读，认为《测量全义》中所涉及到的主要数学和天文学内容已经按照学科特点分别形成和建立起来，为后来西学的进一步传播做出了贡献。

Stylopodium conic; styles 2–3 × stylopodium, ca. equal to fruit.

花柱基圆锥形花柱 2-3 倍的花柱基长，近等长于果。

Stylopodium conic; styles short, elongated and reflexed in fruit; ovary densely white tuberculate.

花柱基圆锥形花柱短，拉长和反折在果期；子房密被的白色的具瘤。

Stylopodium low-conic, margins often undulate at the base.

花柱基浅圆锥形，边经常在基础波动。

Stylopodium conic; styles elongate, erect or divergent, sometimes reflexed in fruit.

花柱基圆锥形花柱拉长，直立或者分叉，在果期有时反折。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。