单词	vacuum pump compressor
释义	vacuum pump compressor 真空泵抽空压气机
随便看	underground record underground regulation underground remains Underground remote control LHD machine underground research education underground research laboratory underground reservoir underground residence underground resistance to the tyrant underground resource underground resources under-ground resources underground retaining wall underground retorting underground river, subterranean river Underground river system underground road underground roads underground roadway underground roadway engineering underground rock cavern underground rock pressure underground room underground rooms of irregular shape underground root