Imagine tiny robots navigating the bloodstream, repairing damaged tissues, or clearing blockages--this might sound like science fiction, but with nanotechnology, it's inching closer to reality.
一下微型机器人在血液中导航、修复受损组织或清除堵塞物——这听起来像是科幻小说,但有了纳米技术,它正一步步接近现实。