They can also build little sensors, LEDs, whole communication packages that are too small to be seen.

它们还能制作出小型传感器、LED 屏，还有一堆小到看不见的封装。

McDowell said that a Japanese communications package that relayed information from the International Space Station to a communications satellite and then back to Earth became obsolete in 2017 when the satellite was retired.

麦克道尔说，2017 年当国际空间站的通信卫星退役时，日本的一个将信息从国际空间站传送给该通信卫星的装置也被废弃了。