granule roundstone是什么意思，granule roundstone的翻译，granule roundstone音标、读音、用法和例句

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granule roundstone是什么意思，granule roundstone的翻译，granule roundstone音标、读音、用法和例句_伍贰汉英词典

granule roundstone

基本解释

专业释义

地球科學