The second barrel is accommodated in the first barrel.

所述第二装筒收容于收容于所述第一装筒内。

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The driving element is used for driving the second barrel to move relative to the first barrel.

所述驱动元件用于驱动第二装筒相对于第一装筒移动。

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The utility model relates to an oil water separator, comprising a first barrel, a second barrel and a water pump.

一种油水分离器它由第一筒，第二筒和水泵组成。

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However, instead of bottling, it went into a second barrel for an extra couple of months.

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