火山岩 [岩] volcanic rock ; volcanic rock
全风化火山岩层 completely weathered volcanic rock ; completely decomposed volcanic rock
高度风化火山岩层 highly weathered volcanic rock ; highly decomposed volcanic rock
风化火山岩 decomposed volcanic rock
全风化火山岩 completely weathered volcanic rock ; completely decomposed volcanic rock
高度风化火山岩 highly weathered volcanic rock ; highly decomposed volcanic rock
火山岩屑 volcanic detritur west bank ; volcanic lithoclast
火山岩屑土 volcanic detritus soil
副长火山岩 foidite
人们普遍认为，具有如此高镁含量的火山岩是不可能存在的。
It was generally accepted that volcanic rocks with such high levels of magnesium could not exist.
这一样本包括曾经柔软的的硬化沉积物的卵石、深海淤泥以及石膏颗粒和火山岩碎片。
The sample consisted of pebbles of hardened sediment that had once been soft, deep-sea mud, as well as granules of gypsum and fragments of volcanic rock.
他们建造了成千上万的圆形石质防风林并在其中种植花草，还用破碎的火山岩来保持土壤湿润。
They built thousands of circular stone windbreaks and gardened inside them, and used broken volcanic rocks to keep the soil moist.
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