The principle of the framework mentioned in this paper is of engineering practice value to certain extent.
所提出的框架原理具有一定的工程实践意义。
This paper is valuable not only in theory but also with reference value in engineering practice.
本文不仅有理论意义，而且对工程实践也有参考价值。
The measurement accuracy control, hardware design and software engineering preparation method are from the projecting practice, which provides some reference and practical value.
其中计量精度控制方法、硬件设计方法和软件编制方法来自于工程实际，有一定的参考和实用价值。
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