It can reach higher temperature without evaporation under low pressure, with low cost, less pollution, convenience and high benefit.

其特点是成本低、污染小、使用方便、经济效益高。

youdao

Let's say we start from some V1 and p1 here, so high pressure, small volume and we end up with a high volume low pressure, under constant temperature condition.

例如我们要从压强比较高，体积比较小V1，p1出发,到达低压强，大体积的末态，过程中温度不变。

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