随着我国国民经济的持续快速发展,对石油、天然气的需求量也在不断的增加,而管道是常用的石油、天然气长距离输送的方式之一,管道运输对我国经济发展起着非常重要的推动作用…。石油、天然气管道的材质一般是钢材,而管道一般都是埋在底下或者暴露在地面上,经常处于较潮湿的环境中,因此易发生管道腐蚀、 With the continuous and rapid development of our national economy, the demand for petroleum and natural gas is also constantly increasing. Pipeline is one of the most commonly used methods for long-distance transportation of petroleum and natural gas. Pipeline transportation is very important to our country’s economic development Promote the role .... Oil, natural gas pipeline materials are generally steel, and pipes are generally buried beneath or exposed to the ground, often in a more humid environment, so prone to pipeline corrosion,