洁净、无灰尘、无污点、无油渍，以客户验收、签字为标准。
Clean, no dust, without stain, without oily be soiled, customer acceptance, signed for the standard.
客户的验收标准就是软件应满足在需求规格文档中描述的需求。
The acceptance criteria for the customer are that the software meets the requirements stated in the requirement specification document.
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