"For a long time, roboticists have used DC [direct current] motors to make robots move," says Mike Tolley at the University of California San Diego.
Мир Российская Премьер-лига|19-й тур
，这一点在快连下载安装中也有详细论述
Simple actuators without this capability are a bit like manual transmission cars that need to be shifted into reverse.
Italian fashion brand Fiorucci also chose to stage its autumn/winter collection in London this year, with a presentation instead of traditional catwalk.
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