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第六百四十五条 拍卖的当事人的权利和义务以及拍卖程序等，依照有关法律、行政法规的规定。
Article 645
The rights and obligations of the parties to an auction, as well as the
procedures of the auction, are governed by the provisions of the relevant laws
and administrative regulations.
第六百四十六条 法律对其他有偿合同有规定的，依照其规定；没有规定的，参照适用买卖合同的有关规定。
Article 646
Where there are provisions of laws governing other non-gratuitous contracts,
such provisions shall be followed. In the absence of such a provision, the
relevant provisions on sales contracts shall be applied mutatis mutandis.
第六百四十七条 当事人约定易货交易，转移标的物的所有权的，参照适用买卖合同的有关规定。
Article 647
Where the parties agree to transfer the ownership of the subject matter by
barter trade, the relevant provisions on sales contracts shall be applied
mutatis mutandis.
第十章 供用电、水、气、热力合同
Chapter X
Contracts for the Supply and Consumption
of Electricity, Water, Gas, or Heat
第六百四十八条 供用电合同是供电人向用电人供电，用电人支付电费的合同。
Article 648
A contract for the supply and consumption of electricity is a contract under
which a supplier provides electricity to the consumer who pays the price in
return.
向社会公众供电的供电人，不得拒绝用电人合理的订立合同要求。
A supplier providing electricity to the public may not refuse a reasonable
request of a consumer to conclude such a contract.
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