Therefore, before being put into production, pipeline shall be desiccated.
因此，在管道投产运行之前，必须对管道进行干燥。
After the pipeline was built, the field began production in nineteen seventy-seven.
1977年在输油管建成后，油田开始生产。
After the pipeline was built, the field began production in nineteen seventy-seven.
1977年在输油管建成后，油田开始生产。
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