Compared with that of last year, our coal output has increased by 3 times.

与去年相比，我们的煤产量增长了3倍。

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Simulation results show that the reducing flow noise ability of this damping structure can be increased by 3 times, as well as it does not affect the sensitivity of hydrophone.

仿真结果表明，该减震结构抑制流噪声能力可提高3倍以上，同时几乎不影响水听器的接收灵敏度。

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Deputy Director Liu, this year the digestive tract foreign bodies in children increased by 3 times more than in previous years, the year to swallow as much as 40 foreign bodies in children.

刘主任介绍，今年消化道异物的患儿比往年增加了3倍多，全年竟有40个孩子吞下异物。

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During this time period, the amount of gold in the world increased by about 3.4 times, due to mining production.

FORBES: The Gold Standard, and the Myth About Money Growth

Auto makers point to studies, including one by researchers at Virginia Tech Transportation Institute, which show that talking on a cellphone increases the risk of a crash or near-crash by 1.3 times over regular driving, while physically dialing a number increased the risk 2.8 times.

WSJ: Just Ahead: Cars That Tweet, Buy Tickets