kettle refining
水壶精炼
以上为机器翻译结果，长、整句建议使用 人工翻译 。
After structure innovation of refrigerating kettle and centrifuge, quality of refining hydrazine hydrate was improved and power consumption in AC production were decreased.
经过对冷冻釜和离心机结构的改进，提高了精肼质量，降低了AC生产的电耗。
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