不可议付的提单副本 non-negotiable copy of bills of lading
不可撤销的议付信用证 irrevocable negotiation documentary credit
无论赞成或是反对，核能作为一种能源，有一点是不可议付的，那就是它对人类世界的建设不可或缺。
Whatever its pros and cons as an energy source, one thing that's non-negotiable about nuclear power is the construction it necessitates.
付款方式为凭单据以不可撤消的信用证向发卡行议付。
Payment will be made by irrevocable Letter of Credit against presentation of documents to the issuing bank.
合同价格要根据承包人要求，在议付银行以不可撤销的信用证方式用美元支付。
The part of the contract price shall be paid in USD by way of an irrevocable Letter of Credit against presentation by Contractor to the negotiable bank.
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