青石棉;
MINEROGENETIC geology characteristics of blue asbestos from China
中国蓝石棉成矿地质特征
Blue asbestos is far less common in buildings, which is just as well because it's more dangerous than white asbestos.
蓝石棉在建筑中很不常见,这倒是一件幸事,因为它比白石棉危险得多。
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