并通过工程实例介绍了原型系统的实现。
The realization of prototype system is introduced by examples of projects .
本文通过工程实例，阐述了用超声波法检测的可靠性。
This paper, through a practical engineering case, describes the reliability ofthe ultrasonic wave test.
最后，通过工程实例说明在软岩巷道施工中所吸取的教训。
Finally, the examples of projects pointed out lessons learnt from roadway drivage in soft rock.
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