The paper discussed the quality cost principle and methods of controlling engineering quality cost.
阐述了质量成本原理及控制工程质量成本方法。
On the course of maintenance, controlling the quality of each step can improve maintenance level and build perfect engineering.
在检修过程中，做好各个环节的质量控制，可提高机组的检修水平，创造优质工程。
Controlling the orientation of testing value of safety margine can reduce the risk of engineering construction quality.
通过控制检测值之安全储备的方向性，可以降低工程施工质量的风险程度。
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