传真机老出现line in use 是什么问题?就是我一拿起话筒就出现line in use ?怎么办? 急!

传真机出现 NO LINE in line on line,in line,in the line fill in the blanks use the words under the line change the w perl提问 关于 Use of uninitialized value in string eq at line 48 一道英语单选题Subway Line 4,＿into use in 2009 has made travelling i wait in line wait in the line use production for assembly line use production for extra pa 我编辑的matlab函数老是出现这种问题：Error using spirallength (line 9) Not e cut in line的统一短语是什么 Stand in a line的英文是什么 keep in line