A log showing the depth or relative position of casing or tubing collars that is used to correlate depth for depth-sensitive applications such as perforating or isolation treatments.

表明套管接箍或油管接箍的深度或相对位置的测井。它用来在对深度敏感的情况下(如射孔或隔离处理)对比深度。

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Attempts have been made to correlate other disease states with the relative deficiency in vitamin D that is still common in high latitudes.

FORBES: Vitamin D: Still More Questions Than Answers

So as much as this rally might make us feel good relative to last spring, bull markets tend not to correlate with inflation.

FORBES: Political Economy