A natural pass (elevation 1, 640 feet [500 metres]) that was cut through the Cumberland Plateau in the eastern United States by former stream activity.

自然形成的坎伯兰山口(海拔1640英尺[500米])曾经是水口，峡谷中的水流沿山口穿过美国东部的坎伯兰平原。

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Graphs of pace, elevation, and heart rate changes during an activity.

图中的速度，高度，和心率的变化，在一项活动。

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Naltrexone (NTX) is a general opioid receptor antagonist devoid of intrinsic activity that results in a compensatory elevation in endogenous opioids and opioid receptors.

纳曲酮(ntx)是一个阿片受体的拮抗剂，因为他缺乏内在的活性，所以会导致细胞内的阿片类分子和阿片受体补偿性的增加。

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