Gas pipe and Gas line

Gas line and gas pipe are semantically related in gas pipeline topic. In some cases you can use "Gas line" instead a noun phrase "Gas pipe", when it comes to topics like natural gas pipeline.

Gas line noun - A pipeline used to transport natural gas.

Gas pipe and gas line are semantically related in gas pipeline topic. You can use "Gas pipe" instead a noun phrase "Gas line", if it concerns topics such as natural gas pipeline.