概述了管道内涂层在国内外的应用现状,详细介绍了内涂层的诸多优点和不同条件下管道内涂敷工艺的技术要点.The application status quo of internal coating gas transmission pipeline at home and abroad is described....

“内涂层”的拼音为：nèi tú céng...

“内涂层”的英语可以翻译为：undercoat...