单词apparent time
un.: 视时网络: 显象时间；表面时间；视时视时
视时
Nevertheless, the trade barrier of navigation electron map is very apparent, time, experience, market already industry doorsill base tall.
不外，导航电子地图的行业壁垒非常较着，时候、经验、市场已把行业门槛垒高。