extension pipe接: come into contact with; come ...长: older; elder; senior管: pipe; tube内岩心管接长管: inner-tube extension接长: adding; joining; lengthen; long splice下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:接长管，即可在微信中查询翻译
