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A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal?keyword=A ceramic thermocouple for measuring temperature of molten metal 专利,更快更准确