The BBC's Michael Bristow in Beijing says China is years away from being able to deploy this carrier as a potent military tool.

BBC在北京的迈克尔·布雷斯托称，中国将该艘航母作为一种有效的军事装备使用还需要时日。

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Beijing is in the middle of a programme to improve its navy, launching its first aircraft carrier, Liaoning, two years ago, the BBC's Michael Bristow reports.

BBC: China navy launches new stealth frigate

When news of the incident spread, other migrant workers - most from far-off Sichuan province - went on the rampage, says the BBC's Michael Bristow in Beijing.

BBC: China migrant workers clash with police for third night