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polar ecosystems | |||
polar ecosystem The interacting systems of the biological communities and their nonliving environmental surroundings located in the regions where the air temperature is perennially below 10° Celsius, usually at and near the North and South Poles (生物群落和生物环境的交互位于气温是摄氏Code:10度以下的地区,通常位于北极和南极附近。) | |||
Arctic ecosystem; polar ecosystem |