adaptersleevebushingconnecting sleeveconnection sleevecoupling sleevejoint sleevesplice sleevesplicing sleevesplicingsleeve连接: connect; fit together; link; ...套管: drivepipe; annular tubes; br ...电缆连接套管: cable sleeve螺纹连接套管: threaded casing内平连接套管: flush-joint casing下载手机词典可随时随地查词查翻译