单词	piping line
释义	piping line 管系
随便看	tunnel junctions tunnel j unctions tunnel karst cave tunnel kiln Tunnel kiln for manufacturing bricks tunnel kiln-method phosphoric acid tunnel kiln reduction tunnel knife tunnell tunnel lake tunnel lamp Tunnel landslide tunnel laser tunnel laying tunnel leak tunnel leakage blocking tunnel lehr tunnel length tunnel-liner tunnelling Tunnelling across railway Tunnelling Association of CanadaTAC Tunnelling Association of CanadaTAC? Tunnelling Association of Canada TAC ? tunnelling construction