化学磨版：用强酸或强碱溶液在平版印版的版面上腐蚀，造成幼细微粒表面。
Chemical graining: the lithographic plate surface is etched to produce a fine grain by the application of a strong acid or alkali solution.
麻坛自然村，据1987年版《浙江省松阳县地名志》记载：“以坛上有磨形岩石而得名。”
"Ma Tan natural village, according to the 1987 version of" Songyang County, Zhejiang Province, "records:" on the altar with the grinding of rock and named.
麻坛自然村，据1987年版《浙江省松阳县地名志》记载：“以坛上有磨形岩石而得名。”
"Ma Tan natural village, according to the 1987 version of" Songyang County, Zhejiang Province, "records:" on the altar with the grinding of rock and named.
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