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n.白墩子（一种精炼的白瓷土，做成墩状以便运输）； 英英释义： PetuntsePetuntse (from 白墩子 in pinyin: bai2 dun1 zi0), also spelled petunse, is a historic term for a wide range of micaceous or feldspathic rocks. However, all will have been subject to geological decomposition processes th
