The AD business currently accounts for around 63 percent of Sina's revenues, and that figure ison the rise.

新浪的广告业务大约占新浪收入的63%，而这个数字将会继续上升。

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Phosphating technique has been widely used for surface treatment of ison and steel.

磷化技术是当前采用较多的钢铁表面处理技术。

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Comet ISON was discovered by Russian astronomers Vitali Nevski and Artyom Novichonok in September 2012.

CNN: Stargazers capture images of comet

Deep Impact has now set its sights on comet Ison during a 36-hour period in mid-January.

BBC: Comet Ison caught on film by Deep Impact craft

Comet ISON was only discovered last September by a network of Russian astronomers.

FORBES: Budgets Nudge NASA Toward Balloon-Based Planetary Science: First Target? Comet ISON