top steel feed roll上: upper; up; upward传送: transmit; convey; deliver; t ...钢: sharpen; strop; whet辊: roller海上传送装置: transfer-at-sea gear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:上传送钢辊，即可在微信中查询翻译
