for central clearinghouses, handling checks by the tens of thousands. By the
Shortcut Pre-calculation: For the most commonly used speed profiles, the travel costs (time/distance) for shortcuts between border points within each cluster are pre-calculated and stored. (Each border point effectively has an "entry" and "exit" aspect for directed travel).，推荐阅读91视频获取更多信息
Map Release Schedule: The intensive preprocessing required to generate all these routing profiles for the entire planet takes about 2-3 days. This means new map updates are now typically released around the 5th of each month, instead of the 2nd.。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
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