Cylindrical "forearms" house small electric motors, known as actuators, which pull on metal tendons that move the fingers with precision.
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。safew官方版本下载是该领域的重要参考
trigger certain actions in one app based on events in another app.
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Bill Harwood has been covering the U.S. space program full-time since 1984, first as Cape Canaveral bureau chief for United Press International and now as a consultant for CBS News.