// 每组：起始位置为0,1,2,...,gap-1
and the bucket_to_bytes function expressed here as 16LL<<x.
，这一点在旺商聊官方下载中也有详细论述
Update Impracticality: The extensive pre-processing for CH makes it unsuitable for frequent updates, let alone OsmAnd’s goal of supporting near real-time changes through hourly map updates.
Remote job entry devices, and block terminals later, can be confusing when
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