介绍了武器装备通用防护油的研制过程、配方、性能及应用情况。
The paper describes the research process, formula, performance and application of weapon equipment preservative oil.
煤矿井下低压供电系统及装备。通用安全技术要求。
General requirements of safety and technical for underground coal mine. loW voltage power sup...
煤矿井下低压供电系统及装备。通用安全技术要求。
General requirements of safety and technical for underground coal mine. loW voltage power sup...
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