Because of the coupling between surface channel and SOFAR channel, sound propagation in two, axis underwater channel is complex and calculation of acoustic fields is difficult.

由于表面声道与深海声道间的耦合效应，声波在双轴海洋声道中的传播比较复杂，因此求解双轴海洋声道中的声场就比较困难。

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Most attention has focused on the M2 protein, an ion channel that protrudes from the virus's surface and tells it when it is inside a cell.

M2蛋白获得重点关注。离子通道M2蛋白突出于病毒表面，当病毒进入细胞内后通知病毒。

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Some of these properties appear to be evident in this iceberg, though the channel may have since been widened and enlarged by the subsequent tidal and surface melting and erosion.

虽然后来的潮汐和表面的融化与侵蚀可能加宽并扩大了这个河道，但是其中一些属性似乎在这个冰山上表现的很明显。

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The one that's on the top here is called ligand-gated ion channel and an ion channel is a protein that sits in the surface of a cell.

最上面的这个叫作配体门控离子通道,离子通道是一类位于细胞表面的蛋白

耶鲁公开课 - 生物医学工程探索课程节选

Actress Molly Ringwald will surface on the "American Movie Classics" channel this weekend.

CNN: The Hollywood Minute

Mario Ploner, the managing director of Tecnomeccanica Biellese, says the ship-based system will use external booms running parallel with the vessel's sides to channel oil onto wool that has been spread over the surface of the sea.

ECONOMIST: Monitor

In 2003, Stanford University spin-out company Cooligy showed off its Active Micro-Channel Cooling (AMC) technology which allowed fluids to circulate through hundreds of tiny channels on the upper surface of a chip.

BBC: IBM aims to cool chips with water