This flat circular disk is our own Galaxy, the Milky Way, with its spiral structure.
这个圆盘就是我们的星系，银河系，带着旋涡的结构。
The general shape of the average nebula is that of a thin circular disk somewhat thick in the center.
星云最常见的形状是中间较厚边缘较薄的圆盘。
Non contact electromagnetic actuator was used in the active control system of transverse vibration of circular disk composed of analog circuits.
应用非接触式的电磁作动器，采用模拟器件设计了一整套圆盘横向振动的主动控制系统，并对圆盘进行了振动主动控制实验。
In this paper, we calculate the double chord-power integrals on circular disk, and arrive at some important properties and inequalities of the double chord-power integrals.
给出圆盘上的一些双弦幂积分公式，并由此获得一些重要的性质及双弦幂积分的一些不等式。
It is discorered that circular hole diffraction and circular disk diffraction pattern in large aperture convergent beam are different from those of general Fresnel diffraction.
实验中发现，经常使用的大孔径会聚光束的圆孔和圆屏衍射图样不同于一般的菲涅耳圆孔和圆屏衍射图样。
Circular disk was rotating about an axis tilted from the normal through the center.
圆盘绕一个通过中心与法线方向倾斜的轴转动。
Circular disk was rotating about an axis tilted from the normal through the center.
圆盘绕一个通过中心与法线方向倾斜的轴转动。
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