Check the operation condition of transmission part regularly.

定期检查各传动部位的运行情况。

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After please start using the device and check the operation of the system.

请开始使用这个装置后，检查系统的运行。

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Then you can check the operation of everything before doing the final welding.

然后你可以做之前检查最后焊接的一切运作。

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Ifremer, a French research institute which operates the Nautile, said it had signed a contract with the Spanish authorities to check the effectiveness of a previous operation to secure the wreck's leaking hull.

BBC: French sub to resume Prestige dives

The operation is obviously the last thing on the check list.

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Cardiff Airport said a snow plough will be in operation but to check with the airport for any schedule changes.

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