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炉气燃烧比：

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电弧炉熔炼：

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感应炉熔炼：

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Glass ionomer cements are composed of()

A. zinc oxide powder and polycarboxylic
B. zinc oxide powder and phosphoric acid liquid
C. aluminosilicate powder and phosphoric acid liquid
D. aluminosilicate powder and polycarboxylic liquid

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球化衰退：

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