...源热泵,空气源热泵,珠江水,蒸发温度, [gap=951]Keywords：water-source heat pump,air-source heat pump,the Pearl River water,evaporation temperature, ...
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And imported water hyacinth plants are choking some parts of the Yangtze River and the Pearl River.
而进口的水葫芦正在淤塞长江和珠江的部分河段。
In October, the United Nations Environment Program declared the Yangtze and Pearl River estuaries dead zones. The water doesn't have enough oxygen in it to support fish.
去年十月，联合国环境署宣布扬子江及珠江入海口为死水区。这两处地区水的含氧量不足以维持鱼类的生存。
The water quality of the pearl river system in guangxi is better than that in guangdong.
珠江水系广西境内江段水质好于广东境内江段。
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