间: space in between; opening的: 4次方是 The fourth power of 2 i ...管段间焊接: tie-in weld段间的: intersegmental节段间的: intersegmental管段: length; pipe section; spool管段表: line bill of material冷管段: cold leg盲管段: dead leg直管段: spool波段间: inter band; inter-band段间部: intersegmental part段间阀: interstage valve标准管段: prover section玻璃棉管段: glass wool pipe section波纹管段: bellows piece沉埋管段: sunken tube存污管段: mudlegs调换管段: repipe更换的管段: replacement section管段长度: length of pipe section; length of the pipe管段吹扫: section purging炉底管段: floor section螺旋管段: pigtail试验管段: test section