Design of a complete set of anaerobic fermentation device. It contents an anaerobic reactor, a constant temperature system by circulating hot water, and a gas collection device.

设计了整套厌氧发酵试验装置，它包括发酵主体反应器、水浴恒温循环系统、集气装置三大部分。

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The box cover is provided with a temperature control system, in the constant temperature box rear drain valve and an external power supply socket.

箱盖上有控温系统，在恒温箱的后部是排水阀及外接电源插座。

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So another important job of the cooling system is to allow the engine to heat up as quickly as possible, and then to keep the engine at a constant temperature.

因此冷却系统还有一个重要任务，就是让发动机迅速预热，然后，就让发动机保持恒定的温度。

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so I'm heating up the system in this path here, and then to connect the 2 endpoints here, a constant temperature path.

需要再用，一个等温过程，这两个状态。

麻省理工公开课 - 热力学与动力学课程节选