古塔胶 gǔtǎjiāo gutta-percha Definitions Defs Origin Strokes Stroke Words Sentences Sents 古塔胶 古塔膠 gǔtǎjiāo gutta-percha a tough, plastic-like substance made from the sap of certain tropical trees, used in industry and dentistry
古塔胶 古塔膠 gǔtǎjiāo gutta-percha a tough, plastic-like substance made from the sap of certain tropical trees, used in industry and dentistry
