An imaging system using thin lenses with silver-plating on one side is equivalent to imaging by a single reflex spherical surface.
本文把单面镀银的薄透镜成像系统等效成单一反射球面成像，在近轴条件下给出等效反射球面的主点位置及焦距公式，并通过例题分别用逐次成像和用等效反射球面成像两种解题方法进行比较，说明这种等效方法的简易性。
wewald's sphere of reflection
女阿瓦芦都的反射球
pha anomalous scattering
阿尔法射线的反常散射
One of the stars for Shimizu was Argentine midfielder Oliva,whose 15th minute strike put the home fans in a good mood.
清水队的明星之一是阿根廷中锋奥利瓦,他在15分钟的时候一钯劲射,使得主场球迷开心不已。
Aliva concrete sprayer
阿里瓦混凝土喷射器
She said __3__ were broken on both sides - especially in Saudi Arabia, where she met women who were fully veiled.
她称双边的陈规陋习都在瓦解，特别是在沙特阿拉伯，在那里她会见了蒙着面纱的妇女。
Most of the reflectors are clustered close to the lunar equator.
大多数反射镜都簇集在月球赤道附近。
All opposition to the government collapsed because of the war.
由于战争，所有反政府的势力都瓦解了。
All opposition to the government has collapsed.
所有对政府的反抗全都瓦解了。
On Watson Transformation in Diffraction Theory of Radio Waves Around the Spherical Earth
球面地电波绕射理论中的瓦特松变换问题
The Gregorian dome, due to its unique geometrical shape, focuses the signal reflected by Arecibo spherical dish one a single point inside the dome.
“罗马穹顶”由于它独特的几何外形，将阿雷西博球形碟面反射来的信号聚焦到它内部的一个点上。
The researches are concerned with alpha rays .
这些研究都是关于阿尔法射线的。
Womanhood, Motherhood, Tolerance--Comment on the Film "All about My Mother";
女性,母亲,爱的宽容——谈阿莫多瓦的《关于我母亲的一切》
"Sir," said d'Avrigny to Villefort, "call Mademoiselle Valentine's maid, if you please."
“阁下，”阿夫里尼对维尔福说，“请您去叫瓦朗蒂娜小姐的婢女来。”
Test Study and Prevention of Concrete's Alkali-silicon Reaction for Allai Khwar Hydropower Project in Pakistan
巴基斯坦阿莱瓦水电站工程混凝土碱硅反应的试验研究及预防
Thomas Alva Edison was awarded more patents on inventions than any other American.
托马斯?阿尔瓦?爱迪生拥有的发明专利比其他任何一个美国人都多。
a ball is thrown back by the wall it has hit.
小球被碰到的墙壁反射回来一样。
Reflex Control of Skill and Tactics Action in Basketball Games;
论篮球比赛中技战术行动的反射控制
Euro Derby: Sheva scoring probably the most important Derby goal after the one scored by Attila.
舍瓦在欧洲德比中的进球，或许是自阿提拉以后最为重要的德比进球。
