Negotiations between a procuring entity and suppliers are generally forbidden, unless the invitation to participate indicated the purchaser's intent to do so or the purchaser determines that no specific tender is the most advantageous.
一般禁止采购实体与供应商之间进行谈判，除非招标书中表明了买方这样做的意图，或者买方确定没有具体的投标人最为有利。