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我厂原有的熔铜坩埚地炉,直径610公厘,高660公厘,正圆形(如图中虚线).每天工作8小时(内辅助时间约1~1.5小时)的熔铜量,仅能用80号坩埚熔化四罐,如果
The original melting copper crucible furnace in our factory is 610mm in diameter and 660mm in height and is round in shape (dotted line in the figure). The amount of molten copper that works for 8 hours a day (the auxiliary time is about 1 to 1.5 hours) Only four crucibles can be melted with crucible 80, if