More and more epoxy powder has been used as external coating on buried steel pipeline at home in recent years.
近年来，国内埋地钢质管道的外覆盖层已越来越多地使用了环氧粉末。
The gouge resistance of three kinds of pipeline external coating was evaluated by using gouge test and data analysis of reliability.
通过划伤试验和测试数据的可靠度分析，研究了三种管道外防护层的抗划伤性能。
The gouge resistance of three kinds of pipeline external coating was evaluated by using gouge test and data analysis of reliability.
通过划伤试验和测试数据的可靠度分析，研究了三种管道外防护层的抗划伤性能。
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