You can now easily activate a 30-second replay, for example, and you can change the replay speed (half-speed and double-speed).

你现在可以激活30秒的回放功能，你也可以改变回放的速度(半速和两倍速度)。

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In order to study half-speed whirl that is subjected to nonlinear oil force of rotor-bearing system, the Wu Elimination method and symbolic calculation method are combined in this paper.

为研究转子 轴承系统中非线性油膜力引起的半速涡动 ，本文给出了将吴文俊消去法和符号计算相结合的分析方法。

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Some studies suggest that straight, horizontal bars painted across roads can initially cut the average speed of drivers in half.

有研究表明，在道路上画上笔直的横杆，可以在开始将司机的平均速度降低一半。

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The findings suggest that even a half-hour walk at a quick speed every day could lower the risk of cognitive impairment.

VOA: special.2011.07.27

The Sea Shepherd Conservation Society says one of its boats,the Ady Gil, a sleek high-technology speed boat, was rammed and sliced in half by a Japanese ship,the Shonan Maru.

VOA: standard.2010.01.06

He pulled his back and played at half-speed for the rest of the series.

WSJ: Can Knicks Cut It Without Amar'e?

You don't have three or four hundred people you're towing along at half-speed.

CNN: Bailout has doubters at tavern near thriving car plant

We also believe that economic growth will start to improve, going from a half-speed recovery to a more normal speed recovery.

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