受国家知识产权局委托，负责国家知识产权局系统的安全保卫、保密和防火工作；

to be responsible for the safety and security, secretes guarding and fire protection of the State Intellectual Property Right Office under its entrustment;

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拍卖目录上把这幅画的委托人描述成一位有着“令人瞩目的个人收藏”的藏家。这位委托人的身份保密的很好，直到拍卖的前一天都无人知晓。

Until the day before the sale, the identity of the consignor, described in the catalogue as having a "distinguished private collection", had been a well-kept secret.

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第二十一条委托人、买受人要求对其身份保密的，拍卖人应当为其保密。

Article 21 Should a trustee or a buyer ask to keep secret of his or her identity, the auctioneer shall keep secret for him or her.

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