我猜recorder是這樣的：

來源: nj_guy 於 2015-01-18 14:38:16 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (281 bytes)
回答: 請教加州關於dash cam使用的規定 由 十年之前 於 2015-01-18 11:32:21

will record and temporarily store last 30 sec of data. If no accident to trigger, it will wash the data out and keep recording. User may not be able to retrieve data. Once accident occurred, 30 sec data before and after will be stored in a permanent location for users to retrieve.

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