根据浇冒口设计理论和生产经验，开发了中小型球铁件压力冒口和控制压力冒口工艺设计程序，并进行了实际生产应用。
Based on risering and gating theories and practical experience, a computer program used to design pressure risering and pressure control risering system was developed.
根据浇冒口设计理论和生产经验，开发了中小型球铁件压力冒口和控制压力冒口工艺设计程序，并进行了实际生产应用。
Based on risering and gating theories and practical experience, a computer program used to design pressure risering and pressure control risering system was developed.
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