Date and time the data was collected.

数据收集的日期和时间。

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When the data was collected (date and time).

收集数据的时间(日期和时间)。

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The gas masks were collected last year because they were out of date.

去年，这些防毒面具由于过了有效期而被收回。

youdao

The gas masks were collected last year because they were out of date.

去年，这些防毒面具由于过了有效期而被收回。

youdao