To locate the optimal drill site, the team had to conduct the first detailed characterisation of the physiography of a sub-glacial lake.

为了确定最佳的钻探点，研究小组首先要确定详细的冰河湖的地貌。

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Drill into parts of the query in more detail, such as referenced views and sub-queries, by expanding and collapsing sections of a complex SQL.

通过扩展和收缩复杂SQL的一部分，来深入获取更详细的查询部分，例如引用视图和子查询。

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Creating a drill-through report from department to sub-department level.

创建从部门钻通到子部门级的报告。

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