... Loran-A locator 罗兰-A定位 Loran-A system 罗兰A系统 Loran-C station 罗兰C台 ...
基于40个网页-相关网页
·2,447,543篇论文数据，部分数据来源于NoteExpress
Just one year ago, the Bush administration announced it would keep the ground-based LORAN system operational to serve as a backup for the satellite-based global positioning systems, which are becoming ubiquitous in cars, planes and ships.
CNN: Navigation system, aid to farmers among budget cuts
However, to do the same to the Loran system, you'd need a 40ft tower -- and around 25kW of juice to power it.
ENGADGET
应用推荐
模块上移
模块下移
不移动