line concentrator集: gather; assemble; collect线装: thread stitching; sewed; sew ...置: place; put; lay线装置: wire drive unit (or wire feeder)x 射线装置: x ray apparatus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:集线装置,即可在微信中查询翻译