由连接在脚踏带上的双螺旋桨提供动力，潜艇的时速可达到8公里，并能下潜至6米深。

Powered by twin propellers connected to a pedal belt, the mini-sub can reach speeds of 8 kilometers an hour and can reach depths of 6 meters.

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在室温和压强(常压)下，装满氢的75升(大约20加仑)标准燃料箱只能驱动一辆氢动力汽车行使大约1公里。

Filling a typical fuel tank of 75 litres-about 20 American gallons-with hydrogen at room temperature and pressure will take a hydrogen-powered car only about a kilometre or so.

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另一条预期时速达到每小时220英里(352公里)的高铁线路，也将在动力车厢(cab cars)内安置旅客座位。

Another HSR operation has proposed a 220 MPH service and has also included passenger seating in the power cars (cab cars).

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