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在1977年第三期本刊已发表过“冰洲石的加工”一文,但因内容简单,很多读者要求对冰洲石的加工工艺作更为详细的介绍,为此发表此文。
In the third issue of 1977, we published a paper entitled “Processing of Ice Stone,” but due to the simple content, many readers demanded a more detailed introduction of ice stone processing technology.