In nine minutes, the probe had to reduce its speed from 20,000 km per hour to zero, landing from 125 km above Mars.

在9分钟内，探测器必须将速度从每小时2万公里降至零，从火星上空125公里处着陆。

youdao

Because the most torque an electric motor has is at zero speed.

因为电动马达的最大力矩处于零速度。

youdao

Maybe it's just that I release it here; with zero speed; maybe I give it a little speed.

也许是这里零速度，释放，也许给它一个初速度。

youdao

"We're measuring the zero-to-60 speed but also the gas mileage, " says Lankford.

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Since congressional Republicans promised to zero out federal funding for high-speed rail, analysts noted, the state wouldn't have enough money to electrify the tracks, let alone build out.

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Ford, Renault-Nissan and Daimler have agreed to jointly develop a fuel cell system to try to speed up the availability of zero-emission vehicles.

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