旋转炉外炉体密封、抽真空和通入保护性气氛。
The furnace body of the outside furnace of a rotary furnace is sealed, the air is vacuumized and protection atmosphere is input.
旋转炉外炉体密封、抽真空和通入保护性气氛。
The furnace body of the outside furnace of a rotary furnace is sealed, the air is vacuumized and protection atmosphere is input.
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