The engineers say the technology could double the capacity of roads by allowing cars to drive more safely while closer together.

工程师们称这一技术可以让汽车之间即使保持更近的距离也能更安全地行驶，从而加倍公路运载量。

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Some firms could be tempted to issue ranges that are so wide you could drive a double-decker bus through them.

一些公司可能被诱惑去发布预测，其范围之宽你都可以在其间开双层汽车了。

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But until they are widely available, simple changes to the internal combustion engine-and the way we drive-could as much as double gas mileage.

但是，在这些汽车还没有广泛使用之前，对内燃机简单的改变以及我们驾驶方式的改变能使汽油里程加倍。

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The SS-AR2's incorporated drivers support a maximum input power of 100 watts through a 25 mm (one inch) soft dome, a 130 mm (five inch) sliced-paper cone and a 165 mm (six and a half inches) aluminum cone (double-drive system), producing a frequency response from 42 Hz to 60kHz.

ENGADGET: Sony reveals SS-AR2 loudspeaker, wants an invite to your next house party

The 8X Super Multi double-layer DVD drive lets customers read all types of DVD and CD media, so they can enjoy popular movies and games while on the go, as well as have access to music files and photos for downloading and sharing on websites.

ENGADGET: Gateway pumps out EC Series ultraportables

Phelps plunked two consecutive batters with pitches, forcing in a run, and Barnes beat out a potential double-play grounder to drive in another.

WSJ: Cano homers, Yankees hold off Astros 5-4