中国需要一个新的补给源。
大气降水是本区植物繁衍的主要补给源。
The precipitation isa main replenishment sources for plant growth in this area.
在以融冰雪为径流主要补给源的河流，气温对径流的影响非常大。
Based on the river having melted ice-snow as the main runoff source, the air temperature plays a leading role in the runoff.
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