Combining production practice, analyses that preparation of coking coal influences coking coal quality and production, expounds the roles of preparation coking coal process in coking production.
结合多年的生产实际，分析了炼焦煤的准备在生产中对焦炭质量和生产操作的影响，阐述了备煤工序在炼焦生产中的作用。
Combining the production practice of 45 steel at lin-gang, the technical essentials and the influential factors of producing 45 steel by converter-cc route were analyzed.
结合临钢对45钢的生产实践，分析了中小型转炉生产45钢的技术难点及影响因素。
The design and manufacturing key points of internal shielded railway digital signal cable are introduced, and combining with production practice, the quality control measures are discussed.
主要介绍了内屏蔽铁路数字信号电缆的设计、生产工艺要点，并结合生产实践讨论了如何进行质量控制。
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