The pipeline transportation is not only one of the five greatest transportation systems, but also the main way for gas transportation in our country.

管道运输是我国五大运输系统之一，是天然气最为主要的运输方式。

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LSAW pipes, made by thick steel plates through compacting, are main pipeline products for long-distance transportation of oil, natural gas.

直缝埋弧焊管是长距离输送石油、天然气的主要管线产品，钢管由厚钢板压制成形。

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The industrial transport corridor for coal transportation to be demolished through blasting was located in very complicated surroundings, which was adjacent to the main pipeline of natural gas.

欲爆破拆除的工业输煤长廊周围环境较复杂，与厂区天然气主管道紧密相邻。

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