Its battery, the size of a tatami mat and weighing about 400 pounds, is under the floor, which helps give the car a lower center of gravity.

它的电池，大小如榻榻米，重400磅，位于汽车的底部，使车子的重心较低。

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Weighing just 1, 600 kg (3, 500 lb), as much as a medium-sized car, theplane powered by four electric motors is designed to save energy from its solarcells in high-performance batteries.

这家飞机配有四台电动机，这种电动机能够节约使用高性能电池内的太阳能电池能源，整架飞机只有1600公斤，约合3500磅，和一辆中型汽车相当。

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The Solar Impulse, with a wingspan similar to that of a super-jumbo jet but weighing the same as a saloon car, took off from a Swiss airfield.

这架利用太阳能脉冲的飞机，其翼展类似一个超级喷气式客机，但这重辆却与一辆轿车差不多，该飞机从瑞士机场起飞。

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In general, however, experts say to look hard at leasing if you want an expensive car weighing less than 6, 000 pounds and plan to replace it every two years or so.

WSJ: Tax Report: The New Tax Breaks for Business Autos

McLaren will make its decision regarding the French Grand Prix after weighing up the performance and reliability of the new car in Jerez.

BBC: Pedro de la Rosa in the McLaren MP4-19B at Jerez in Spain

Massa was hit on the helmet by a metal spring, the size of a drink can and weighing almost a kilo, which fell off fellow Brazilian Rubens Barrichello's Brawn car.

BBC: Massa set to fly home to Brazil