Lamp shell surface cover ring for standard size, suitable for all kinds of lamps installation;

灯壳面盖环为标准尺寸，适合各种灯具的安装装配；

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An annular eclipse occurs when the moon does not cover the entire disc of the sun so that a ring of light encircles the shadow of the moon.

当月亮不能完全遮住太阳时，月亮影子的周围就会有一圈亮光，日环食就发生了。

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The soldiers handcuff the ring leader and cover his head.

士兵们拷上了团伙的头目并盖住他的头。

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Amla duly went to his third Test century - all scored against New Zealand - before being caught in the cover ring on 103.

BBC: Super Steyn crushes hapless Kiwis

Ali would lean back on the ring ropes, cover his face with his forearms and let his opponent wear himself out in a flurry of punches.

CNN: From Charles Bierbauer

Armstrong already has had conversations with U.S. Anti-Doping Agency officials, touching off speculation that the team leader who demanded loyalty from others soon may face some very tough choices himself: whether to cooperate and name those who aided, knew about or helped cover up a sophisticated doping ring that Armstrong ran on his tour-winning U.S. Postal Service squads.

NPR: Lance Armstrong May Not Be Done Confessing