The depth of the index structure (a measure of the amount of work that is needed to perform an index lookup).

索引结构的深度(衡量执行索引查找所需的工作量)。

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Objective To observe the changes of auditory evoked potentials index(AEPI)during induction and tracheal intubation and evaluate its effectiveness on anaesthesia depth monitoring.

目的观察听觉诱发电位指数在全麻诱导插管期间的变化，评价其用于临床麻醉深度监测的有效性。

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Objective: To study the degree of routine anesthesia depth in cardiac valve replacement patients monitored by bispectral index (BIS), and to find out the relationship between BIS and stimulus.

目的应用脑电双频谱指数（BIS）监测常规经验麻醉下瓣膜置换术病人的麻醉深度（意识水平），观察BIS在伤害性刺激时的变化。

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The rally came despite the collapse in the Conference Board's monthly consumer confidence index, which fueled concerns about the likely depth of the expected recession in the U.S. in the wake of the global financial crisis.

NPR: Dow Ends Up 889 Points On Expected Rate Cut

The 500-stock index, considered a better harbinger of the U.S. market thanks to its breadth and depth, closed at 1, 569 Thursday, up 0.4% on the day and 10% for the first three months of 2013.

FORBES: HP Paces Dow's Big Quarter, Leaves Caterpillar In The Dust