The test held today marks a significant milestone in technological maturity of the hybrid electric drive system.

目前进行的试验是标志混合电力驱动系统技术成熟度的重要里程碑。

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Today, there are three main types of space sail: solar ( the one NASA plans to test), electric (being developed in Finland) and magnetic (a concept popular in the 1980s that never quite took off).

现今已有3种主要的太阳帆：太阳驱动（NASA计划测试的类型），电驱动（正在芬兰开发）和磁驱动（1980年代很时髦如今也不算太过时）。

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In the other test, they wore piezo-electric vibrators on each finger, and the goal was to report which finger was being gently stimulated.

在另外一项试验中，他们每只手指上都戴着电子颤音器，目的是为了测验那只手指被轻轻触动了。

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But based on feedback from drivers participating in Smart Fortwo Electric Drive test programs, Mercedes says a more typical charge time might be 3.5 hours to go from 20 percent to 85 percent.

FORBES: Test Drive: Smart Fortwo Electric Drive Is Much Better Than The Gas Version

Michael had sketched with perfect strokes a California phenomenon much as another Eastern skeptic, Tom Wolfe, had done 33 years earlier with California crazies of a different bent in The Electric Kool-Aid Acid Test.

FORBES: Got to be wireless

Their first test in October 2007 was a success: An all-electric car plugged in at the University of Delaware and rigged with communication software responded to a signal from PJM for a sudden burst of power to help balance supply and demand on the grid.

FORBES: Magazine Article