However, when that gate is opened, the sodium channel is now going to be incredibly selective and only let through sodium ions and no other type of ion.

但是，当闸门打开的时候，钠离子通道,将会有极高的选择性,不允许除钠离子以外的任何其它离子通过。

麻省理工公开课 - 化学原理课程节选

The closed system allows energy to transfer through the boundary but not mass.

闭系允许能量通过它的边界传递,但质量不行。

麻省理工公开课 - 热力学与动力学课程节选

The ones that are most important in physiology are ones that only allow ions to go through: sodium, potassium, chloride, calcium, bicarbonate.

在生理学上这种,只能允许某种离子通过的通道十分重要,这些离子包括钠离子,钾离子,氯离子,钙离子和碳酸氢根离子

耶鲁公开课 - 生物医学工程探索课程节选

Inflation is the most important thing according to many views because the Fed has to guarantee the soundness of the money supply -- and there have been so many cases in history when the central bank allowed debasement of the currency through inflation.

通货膨胀是最重要的事情,根据很多观点,因为美联储必须保证,货币供应的稳固,并且在历史上有太多的例子,当中央银行允许,通过通货膨胀改造货币。

耶鲁公开课 - 金融市场课程节选

For these purposes think about a channel, it only allows sodium to go through for example.

基于此目的,我们来讲离子通道,拿仅允许钠离子通过的通道作为例子

耶鲁公开课 - 生物医学工程探索课程节选

Now, these are special channels in that they only allow certain molecules to pass through.

这种特殊的通道,只能允许特定的分子通过

耶鲁公开课 - 生物医学工程探索课程节选