A tiny gas-turbine engine that fits on a 20 cent piece could replace batteries that power laptops, mobile phones, radios and perhaps home generators, its developers say.
A tiny gas-turbine engine that fits on a 20 cent piece could replace batteries that power laptops, mobile phones, radios and perhaps home generators, its developers say.
该制造者表示，一个可以装在两角钱硬币上的微型气压涡轮机引擎能够代替电池，供电给手提电脑、移动电话、收音机和或是家庭发电器.