gas pipcline的用法和樣例：
例句
- As for gas pipelines, the gas company dedicated to transforming the operations.
至於燃氣管道，改造要由燃氣公司的專人操作。 - Zhicheng in Beijing in Beijing participated in the Beijing Metro to create, airport construction, road construction, emergency, gas pipeline construction projects.
志成在北京在北京參與了北京地鐵創建，機場建設，道路施工，搶險，燃氣管道的施工等項目。
