Around a fifth of an average car tyre is therefore made of natural rubber. In an aeroplane tyre that figure can be more than four-fifths.

因此，一个普通车胎含有约1/5天然橡胶，而一个飞机轮胎中则超过4/5。

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Once the runs were complete, you could hire an inner tube from a car tyre at a price of ten yuan per hour, and have as much fun as you could take.

滑道一建好，你就可以用一小时十元的价格租一个汽车内胎，尽情玩乐。

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The project is part of Secco's Treasures of Wasteland series, which finds new USES for discarded items such as car tyre inner tubes, washing machine drums, LP records and electronic components.

该项目的一部分，赛科的宝藏荒地系列产品，发现新用途被丢弃的物品，例如汽车轮胎内胎，洗衣机桶，低压记录及电子元件。

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The company also intends to keep its car and motorcycle tyre activities, on the grounds that these, like telecoms, are technology-intensive and can generate high returns.

ECONOMIST: A risky move into telecoms has upset a lot of shareholders

No other vehicle was involved when the BMW patrol car suffered a shredded tyre and broken suspension strut on 26 October.

BBC: PC Mark Milton cleared of charges after 92mph crash

Other suggestions for change are rumoured to include, scrapping third cars and t-cars and having pit-stops during the race with just 12 crew members working on the car and only one tyre changer.

BBC: Formula One is gearing up for more changes