还是关于阀门技术规范的翻译问题,这次有些多,不过只剩 ...? once the approval has been given by the purchaser, any changes in design, material, and method of manufacture shall be notified to the purchaser whose approval in writing of all changes shall be obtained before the commencement of manufacturing. 一旦买方批准,任何设计、选材和制造方法方面的改动必须通知买方,获得买方书面许可后方能开始生产。 查看更多