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The convex aspheric surface has self-aplanatic capability.The range that can be utilized in practice was studied.

分析了自差方法检验凸二次非实际可用范围。

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Concentric spheres are parallel.

同心是平行

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In this paper, model of aspherisation for higher-dioptry spectacle lens is investigated.

本文研究高屈光度眼用除离轴像散化模

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In the article we analyse the structure compose,the endure force status,the request of strength and stability on the domed bulkhead with nonaxisymmetry sphere-conical transitional annulated shell.

系统分析了带有非轴对称渡环壳舱壁结构组成、受力工况、强度与稳定性要求,用有限元方法对各参数进行了强度优化与稳定性优化。

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In this paper, we show that the Pseudo-Symmetric property of spherical point set can be characterized by the eigen values of eigenpolynomial and it has the closeness under the metric sum operation.

本文证明了有限点集伪对称性可以完全由其特征多项根来刻画,并得到了在度量加运算下伪对称性具有封闭性.

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当月 CNN 10 学生英语 2020年10月合集

That's also of great value scientifically.

球面区域科学研究意义很大。

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日常生活高频词汇

All points on the surface of a sphere are equally distant from the center.

球心到球面任何一点距离都一样。

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Crash Course Physics 速成课物理

Say we have a lens that has a spherical face on both sides, known as a convex lens.

假设我们有一具有球面 侧,称为凸透

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双语版 TED-Ed 演讲精选

There actually is something called the Riemann sphere that involves dividing by zero by a different method, but that's a story for another day.

事实,有叫黎曼球面东西,它涉及到通过不同方法来除以 0,但今天我们且不谈这

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工程学速成课

Initially the telescope used line feeds, elongated receivers that could gather signals within the focal line of the spherical dish.

最初, 望远使用线馈送,细长接收器可以收集球面盘焦线内信号。

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VOA Standard 2014年5月合集

Hubble Space Telescope Program Manager Douglas Broome delivered the troubling news: “The conclusion we’ve come to is that a significant spherical aberration appears to be present in the optics, in the optical telescope system optics, ” he said.

哈勃太空望远项目经理道格拉斯·布鲁姆 (Douglas Broome) 发布了这令人不安消息:“我们得出结论是,光学望远系统光学元件中似乎存在明显球面像差, ” 他说。

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