研究结果表明，在控制人民币实际汇率变动和国外市场需求变动之后，我国贸易差额与人民币升值预期之间的相关关系非常显著；
The results show that China's trade balance is significantly related with the expectation of RMB appreciation after controlling the movement of real effective exchange rate and abroad market demand;
对成本价格进行确认并跟踪，控制销售差额；
Determine and ensure the follow-up of the cost price. Control the margins of the sales;
采用差额公式法调价操作比较简单，可以很容易得出实际价差，对工程的施工质量起到一定的控制作用。
Balanced error formula method is easier to operate price adjustment and draw the conclusion of practical price gap. It makes definite utilization of control for project construction quality.
采用差额公式法调价操作比较简单，可以很容易得出实际价差，对工程的施工质量起到一定的控制作用。
Balanced error formula method is easier to operate price adjustment and draw the conclusion of practical price gap. It makes definite utilization of control for project construction quality.
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