城镇燃气

  • 网络city gas; urban gas; town fuel gas

城镇燃气城镇燃气

城镇燃气

city gas

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urban gas

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town fuel gas

压力管道名词术语 ... ... 3.2.4.27 经济厚度 economical thickness 3.2.4.28 城镇燃气 town fuel gas 3.2.4.29管沟 pipe trench ...

town gas

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