snow-cover line是什么意思，snow-cover line的翻译，snow-cover line音标、读音、用法和例句

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snow-cover line是什么意思，snow-cover line的翻译，snow-cover line音标、读音、用法和例句_菜篮子兴趣思朗文词典

snow-cover line

基本解释

专业释义

地球科学