青云翻译

This design is the main gas pipe network planning for the area in a city of Hefei, the design uses natural gas as the gas source, gas pipelines primarily used in the steel.

This design is intended for a planning of city gas pipeline network in Hefei area, the design uses natural gas for gas, gas pipeline used steel pipe.

This design mainly is aims at Hefei area some city to carry on the fuel gas pipe network the plan, this design uses the natural gas for to be mad the source, the fuel gas pipeline mainly uses the steel pipe.

This design is mainly directed against a certain city in Hefei for gas pipeline network planning, design, built with natural gas as the source of the air, and gas pipelines are primarily with pipes.

This design is intended for a planning of city gas pipeline network in Hefei area, the design uses natural gas for gas, gas pipeline used steel pipe.