他们在巴基斯坦和孟加拉修建深水港口，在尼泊尔修建公路，在缅甸修建石油和天然气管道。
It is building deepwater ports in Pakistan and Bangladesh, roads in Nepal and oil and gas pipelines in Myanmar.
这种钢主要用于制造石油和天然气管道(包括低温和高压下操作)，船舶，建筑，高压容器等。
This type of steel is mainly used in oil and gas pipelines (including those operating under low temperatures and high pressure), ships, buildings and high-pressure vessels.
随着石油天然气管道建设的大力发展，尽管人们采取了多种防腐和防范措施，但管道泄漏仍时有发生。
With the construction of oil and gas pipelines, despite of a variety of anti-corrosion and preventive measures, the pipeline leakage still occurs.
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