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So we have system insulated from the outside world, and we have two bulbs.
我们有一个与环境隔绝的系统，和两个腔体。
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Or a situation that you were in.
或是一些你所处的场合与环境。
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These are mechanisms that can be described not too differently from mechanisms that you're familiar with for maintaining homeostasis.
这些过程说起来,与你们熟悉的环境稳定机制,并无太大不同
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Religion can't be divorced from social, political, and historical contexts and issues.
宗教无法脱离于社会，政治，及历史环境与事件。
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Suppose we're looking at the system isolated from the outside world.
假设我们研究一个,与外部环境。
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And one answer to why we eat and when we eat is that there's cues in the environment that are associated with eating.
对与这个问题，有一种解释认为,这是因为环境中存在着,与进食有关的提示线索。
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It fit the environment perfectly, once they could make these things actually go twenty-five miles an hour.
它与北美的环境及其契合,人们铺路速度一度可以,达到每小时25英里
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Third,premise related to the first is opposed to happiness which is primarily function of external circumstances.
第三，这个前提与,与决定幸福的,外部环境无关。
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A lot of the issues we do within EPA, or technically, is in nature.
我们所做的许多工作，其实都与环境有关。
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And all we are competent therefore to decoil pose and recoil pose these elements of learning, so that we are still consistent with all those purposes, both explicate and implicit, of an educational environment.
我们可以,单独和综合呈现,这些学习的要素，所以我们仍然与,教育环境的目标一致，包括表层目标深层目标。
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If you think about the modern food environment compared to the ancient one, so let's say somebody getting something at a fair compared to the old days.
如果将现在的饮食环境,与过去的相比,例如比较在现在和过去的人们,在集市上能买到哪些东西
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So, these are all involved with our ability to maintain homeostasis by exchanging materials with the external environment.
这个过程关乎人体维持内稳态的能力,内稳态通过与外环境进行物质交换来实现
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The respiratory system, for example, the renal system, the digestive system, these are examples - three examples of organ systems that contact the external environment.
例如,呼吸系统,泌尿系统,消化系统,这些系统,这三个系统,与外环境相联系
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Since it's isolated, no heat is added.
因为它是与环境隔绝的，因此没有热量交换。
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This idea that humans have evolved, that physical changes have occurred in humans as a consequence of their food environment, has led us to where we are now.
探讨人与食物的关系,探讨人类机体,由于食物环境而产生的变化,是我们今天坐在这里的原因
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There's no change in them, and then we also looked at some at non-state functions, work and heat, and saw that those aren't zero going around a cycle. Of course you can do work in a cyclic process, and heat can be exchanged with the environment at the same time.
它们不会有变化，然后我们研究了,一些非态函数，功和热量，并看到,沿着循环行进一周的话,它们并不是零，当然你可以在,一个循环过程中做功，而同时热量可以在系统,与外界环境之间进行交换。
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Depending on what you call external and internal environment, this path that I'm tracing here, deep within your digestive system, is really directly connected to the outside world through both ends.
基于你们所谓的外环境和内环境,我在这里我所指的消化系统内部通路,它的两端确实与外界环境直接相通
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And this is in an isolated, in an adiabatic container.
这应该是个很简单的问题，桨轮处在一个与外界隔离额绝热环境中。
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We've talked about the interesting way in which the digestive system contacts the external environment.
我们会讲到,消化系统与外环境之间十分有趣的联系
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U It's u, because u is to q plus w right, heat and work, but it's adiabatic. So there's no heat, exchange with the environment, and it's constant volume, so there's no p dV work, right.
什么是零？是U，因为,等于q加w，热量和功，但这是绝热的，所以系统与环境间没有热量交换；,同时它是灯体的，所以也没有pdV形式的功。
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