炼油厂许多主蒸汽管线，直经和质量较大，管线在管架上常被拉裂。
Many main vapor pipes in oil refineries have long diameter and big weight, so the pipes often crack on the common supporters. A new sliding supporter is designed to solve the problem.
一核电厂主蒸汽管线存在振动和噪声过大，大修时还发现主蒸汽隔离阀闸板存在一定的磨损。
There are over high vibrations and noises of the main steam piping lines of a Nuclear Power Plant. Wear abrasion of the main steam isolation valves was found during the fall outage.
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