This is a useful device for detecting electrical activity.

这是用来探测电流活动的仪器。

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Garbage can is a kind of useful device in landscape.

垃圾箱是园林中最常见的一类实用性小品。

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The device of the present invention is particularly useful as a mass customized cast device.

作为大量定制的铸造装置，本发明的装置特别有用。

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The device of the present invention is particularly useful as a mass customized cast device.

作为大量定制的铸造装置，本发明的装置特别有用。

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