An ion channel is a molecule that allows the passage of electrically charged atoms of sodium, potassium, calcium and so on through the outer membrane of a cell.

离子通道是一种分子，它允许钠、钾、钙等离子经由它通过细胞外膜。

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Rescue workers in 8 to start late, as the miners mining rescue channel and escape passage.

救援人员于8月底开始，为矿工挖掘救援通道和逃生通道。

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The water area outside of North Passage is part of the submerged delta in Changjiang estuary, and there is the outlet of the outer navigation channel in North Passage.

长江口北槽口外水域是长江口水下三角洲的组成部分，是长江口深水航道外航道出口段的所在区域。

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Mr Besson said he planned to work with the British government on a common strategy "to reinforce controls and make the passage by the (Channel) Tunnel or port as difficult as possible for illegal immigrants".

BBC: French migrant camp re-examined