基本解释慢速裂紋擴展专业释义化學慢速裂紋擴展However Slow Crack Growth (SCG) is recognized as one of the major concerns for polyethylene pipes.慢速裂紋擴展(SCG)被認爲是造成聚乙烯琯道失傚,影響琯道壽命最重要的隱患之一。