To analyze the pollution carrying capacity of Poyang lake, set the water environment volume as the restricted value, brought up the the pollution abatement area and total amount of Poyang lake.

分析鄱阳湖污染承载力，以水环境容量值为约束值，提出鄱阳湖污染物削减区域和总量。

youdao

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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