I say +/- because it can vary between modules, time of day, clarity of reception, etc. Most modules can get it down to +/-3m, but if you need sub meter or centimeter accuracy, it gets really expensive.
基于1个网页-相关网页
it gets really expensive
它变得非常昂贵
以上为机器翻译结果，长、整句建议使用 人工翻译 。
应用推荐
模块上移
模块下移
不移动