Zinc plating passivation, stained or coated guard light agent, can significantly improve the protective and decorative.

锌镀层经钝化处理、染色或涂覆护光剂后，能显著提高其防护性和装饰性。

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But in the past month, 140 characters were enough to shine a light on Iranian oppression and elevate Twitter to the level of change agent.

但在过去的一个月里，140个字符已经足以照亮伊朗的压迫，并把Twitter提高到一个变革促进者的水平。

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A dentist performs in-office treatments by coating the teeth with a bleaching agent, then using periodic flashes of light to activate the solution.

所谓诊所治疗就是牙医用漂白剂给牙齿涂层，并周期性地用闪光灯来启动解决方案。

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The recent revelation that in 2003 Deputy Secretary of State Richard Armitage was the original leaker of the name of a CIA agent has led to an astonishing climax in a case that clearly should never have seen the light of day.

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