第一部分 翻译

1)In a line designed to carry a liquid , the presence of gas can reduce flow and pumping efficiency; in a gas pipeline, the presence of liquids can reduce flow efficiency and damage gas compressors and other equipment.

2)Liquefied natural gas (LNG) is natural gas cooled and compressed to a temperature and pressure at which it exists as a liquid.

3)Flexible pipe has also been used in a number of offshore applications. It offers ease of installation and can handle high pressures and extreme service.

第二部分 听力

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第三部分

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