The AG600 amphibious aircraft is expected to take its maiden flight over land in the first half of 2017 and on water in the second half, said its developer, the...

据外媒报导，日本长野信州大学（ShinshuUniversityinNagano）的研发人员正在研发一款纤薄的大容量锂离子电池，或能打开电动车储能系统新的研究领域。