frame casing是什么意思

中文翻译框式水带外层

网络释义

1)frame casing,框式水带外层2)hose jacket,水带外层3)double jacket hose,双外层水带4)single jacket hose,单外层水带5)flat weave casing,平织水带外层6)round weave casing,原织水带外层