The application of computer to the melting process, oxygen-enriched blast and desulphurization technique was briefed.
简述了计算机在熔炼工艺上的应用、富氧送风、铁液脱硫技术的情况。
The paper briefed the evolutionary process of supporting technique in drift, from which the new kind of grouting reinforcement technique was derived.
介绍了巷道支护技术的演变过程，从中衍生出新型的注浆加固技术。
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