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- The celestial globe invented by Zhang Heng, Chinese scientist of the East Han Dynasty (25 A.D. - 220 A.D.), was the first of its kind in the world. It determined that the angular diameter of both the sun and the moon was 0.5. 中国东汉科学家张衡发明的天球仪是世界上最早的天球仪。 它可以测出太阳和月亮的角直径都是0.;5度;黄赤交角为24度。
- Angular diameter of the retro-reflecting device 回复反射装置的角直径
- This lens can magnify 20 diameter. 这个透镜能放大20倍。
- The diameter of the tree-trunk is about 2 meters. 这树干的直径大约是2米。
- Angular forms, outlines, or corners. 角形角形，角的轮廓或棱角
- The axis of a circle is its diameter. 圆的轴线是其直径。
- Measure the diameter of this circle. 量一下这圆的直径。
- We must gauge the diameter of wire first. 我们必须先测量电线的直径。
- A tube with a very small internal diameter. 毛细管一根内径十分细小的管子
- The angular distance of a celestial object above the horizon. 地平纬度地平线以上天体的角度距离
- angular diameter 角直径
- A small angular cavity or pit, such as a honeycomb cell. 小窝，蜂巢小窝或小泡，如蜂房的巢室
- The angular distance between two celestial bodies as seen from Earth. 距角从地球上看的两个天体之间的角距离
- In this chapter we will discuss angular momentum. 本章将讨论角动量。
- That is, the angular velocity is more than doubled. 即所得的末角速度大于原来的二倍。
- He has a more angular figure than his father. 他的体型比他的父亲更显得有棱角。
- The pond has a diameter of three hundred metres. 这池塘直径有三百米。
- Angular momentum is an axial vector quantity. 角动量是一种轴矢量。
- A circle is bisected by any diameter. 圆被任一直径二等分。
- She was no longer as softly pleasing, more angular. 她已不再象从前那样温柔可爱了，瘦削了一些。
