不要依赖空调，排气系统或打开窗户来清洁空气。

Don't rely on an air conditioner, ventilation system or an open window to clear the air.

youdao

创建一个新的或打开一个现有的解决方案信息项目。

Create a new solution information project, or open an existing one.

youdao

由于这仅影响将来装入的类，因此不能随意地关闭或打开它。

This only affects classes loaded in the future, so it can't be turned on and off at will.

youdao

You break the seal between them and feel the thing get cold, for example, right.

如果你买了制冷或加热包,你打开它们之间的封条。

麻省理工公开课 - 热力学与动力学课程节选

you could characterize them in terms of how they're gated, -- and basically how they open or close -- that's one way to talk about different types.

你可以通过闸门的类型来描述它们，这基本上也就是看它们是如何打开或关闭的-,这是一种讨论不同类型的方法。

麻省理工公开课 - 化学原理课程节选

I couldn't have told you, for example, if we look at a phosphate group, that that's going to be incredibly important in DNA, that it's also an incredibly important group when you're dealing with proteins and whether you're turning the function of a protein on or off.

怎么和化学反应相联系起来的，更不记得其它我更不感兴趣的规律,我不能告诉你，如果我们看磷酸盐,它们对于构成DNA十分重要,也是构成蛋白质的重要组份,它是否能打开或关闭一个蛋白质的功能。

麻省理工公开课 - 化学原理课程节选