Compared with the role of the feedforward projection, much less is known concerning the functional roles of the feedback projection.

视觉皮层是研究反馈投射通路的较好模型，其下行反馈的投射涉及注意、搜索和认知等高级功能。

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NO may be of great significance in maintaining the stabilization and functional roles of pulp and be related to the potential ability of pulp self-repair.

NO对于维持牙髓组织自身稳定，以及在牙髓自身修复过程中可能发挥重要作用。

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The functional roles of the NaChs were tested by observing the effect of tetrodotoxin, a specific blocker of NaChs, on the intrinsic heart rate of isolated rat working heart.

建立大鼠离体灌流心脏模型，观察钠通道特异性阻断剂河豚毒素对离体灌流心脏自发性节律即固有心率的影响。

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To get this broad exposure, managers were given a variety of functional roles, eventually assuming leadership for a small business unit.

FORBES: It's Time To Bring Back The General Manager

In my previous Harvard Business Review blog I have written about sales leadership being the toughest of the functional leadership roles.

FORBES: Make Your Sales Vision Come To Life