| Subject | English | Portuguese |
| transp. | pipeline transportation | transporte por condutas |
| environ. | transportation by pipeline | transporte por condutas |
| environ. | transportation by pipeline | transporte por pipeline |
| environ. | transportation by pipeline Transportation of gases, liquids or slurries by a system of tubes, of steel or plastics. Petroleum, natural gas and products derived from them are the main substances transported by pipelines | transporte por pipeline |