Permission system comprises four main parts: user part, object part, operation part and task.

系统分为四部分：主体部分、客体部分、操作部分和任务部分。

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For many dance companies "The "Nutcracker" is an important part of their financial operation.

VOA: special.2010.12.22

That saves them from losing their money if the car is eventually impounded by authorities as part of the ongoing crackdown on stolen vehicles called Operation Gbanda.

VOA: standard.2009.11.09

Then the little ones go under the blow dryer. "They are so happy once they're de-oiled and it actually makes you feel pretty good that this part of the operation is being done to save these animals."

VOA: standard.2010.06.08

Sources say the raid was phase one of a three-part operation.

NPR: Attacking Al-Qaida In Pakistan

Mr Travis, of Mentmore, Bucks, was first arrested in November 2012 as part of Operation Yewtree.

BBC: Dave Lee Travis rebailed over sex offence claims

Weapons can be deposited at Southampton Central or Bitterne police stations as part of Operation Fortress.

BBC: Hampshire police launch month-long knife amnesty