When the purchaser that mutual consultation process design for its unique needs is essential, can request, no purchaser approval, without changing the prior process design and method of operation.
当采购方认为双方共同协商的工艺设计对它的独特需要是必不可少时，可以提出要求，没有得到采购方的认可，事先不得擅自改变工艺设计和操作方法。
As I understand the Call is expressed by a question on consultation or the request for the help to someone.
按照我的理解，呼叫被表达为探讨会上的提问或者向某人请求帮助。
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