In the heart, action potential is moving from one heart muscle cell to another over the surface of the heart.

在心脏中，动作电位是在心脏表面从一个心肌细胞向另一个心肌细胞传递。

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Afterward, time strode over me slowly, just like the road roller runs over the surface of an asphalt pavement that was not enough smooth.

后来，时间慢慢地从我身上走过，就像压路机在不够平整的沥青路面上碾过一样。

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Geoff's eyes skitter over the surface.

杰夫的眼睛向周围扫视一下。

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In it,he developed a theory that intelligent life had created waterways all over the surface of Mars.

VOA: special.2010.07.11

Now, in the heart action potential is moving from one heart muscle cell to another over the surface of the heart.

心脏中的动作电位,沿相邻心肌细胞在心脏表面传递

耶鲁公开课 - 生物医学工程探索课程节选

This tactile mastery attests to something remarkable that's happened over the course of the poem, somewhere below the surface of the poem, somewhere between the lines.

这种触觉的掌控证明了一些发生在诗歌里的意义非凡的事情,这些事情贯穿诗歌的整体，暗藏在诗歌的表面之下，深埋在字里行间。

耶鲁公开课 - 弥尔顿课程节选

These will, as their names suggest, crawl over the surface taking samples and pictures.

ECONOMIST: Mars Odyssey

The Surface with Windows 8 Pro (its official name) does include several upgrades over the Surface RT.

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They are then mixed together to create a grey powder that floats in alcohol over the surface of the lens.

ECONOMIST: Microelectronics