It roots from substantial need and utilitarian sense activity.

它根源于物质需要和功利性意识行为。

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The other end of each electrode is attached to a nerve cell, so that the BrainGate can sense the activity of 100 nerve cells simultaneously.

这些电极的另一端与神经细胞相连，以使“大脑之门”可以同时感知100个神经细胞的活动。

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The BGU technology features a helmet equipped with 14 EEG connect points that sense brain activity.

BGU的这项技术的主体特征是一个带有14个感知脑活动的EEG(脑电图)连接点的头盔。

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If people cannot sense a reward, she says,then they might have difficulty completing an activity.

VOA: special.2009.09.16

Walking is something you can do with others, in the sense that it can be a joint activity,a joint undertaking.

走路是一件你能和他人一起做的事，这是一个共同合作的行为和事件。

耶鲁公开课 - 死亡课程节选

He says they add humor and a sense of activity.

VOA: special.2009.09.09

Making sense of that activity is the province of Union Metrics, a measurement and analytics service and preferred partner of the fast-growing social blogging platform.

FORBES: Here's Exactly What It Looks Like When Something Goes Viral On Tumblr

Although this activity made sense to senior leaders, most others in the firm were confused about how everything fit together, how to prioritize their work, and how to allocate time and resources.

FORBES: Show Your People the Forest so They Don't Get Lost in the Trees

Often, this involved some sort of notification that would make sense to broadcast on an activity stream.

FORBES: New Sources for Business Surprises