Oil drilling project is a special project which take the ground as the work object and has the high investment, high risks and high levels character.

石油钻井工程项目是一个以地层为工作对象，高投入、高风险和高技术水平的特殊工程项目。

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Oil drilling project is a special project which take the ground as the work object and has the high investment, high risks and high levels character.

石油钻井工程项目是一个以地层为工作对象，高投入、高风险和高技术水平的特殊工程项目。

youdao