Within JS ORM picks only
class CombinedStorage {，这一点在服务器推荐中也有详细论述
Supports Frequent Updates: The architecture is designed to work with OsmAnd’s hourly map updates, allowing routing to adapt to fresh road information.，详情可参考爱思助手下载最新版本
Wide variety of templates to fit multiple uses。关于这个话题，safew官方版本下载提供了深入分析