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- YZ-1型地下牙轮钻机YZ-1 UNDERGROUND ROTARY DILL
- YZ-35型牙轮钻机主空压机系统换型改造的探讨CHANGE OVER THE MAIN AIR COMPRESSOR OF YZ -35 GEAR WHEEL
- YZ-100-1型可控硅中频装置YZ- 100- 1 silicon controlled rectifier medium frequency equipment
- CY-2型地下铲运机驱动桥壳强度分析与结构改进Strength Analysis on Drive Axle Case of Model CY-2 Underground Scraper and Its Structure Improvement
- 牙轮钻机振动roller drilling vibration
- 型的thysanuriform
- 异层储能型地下水源热泵系统的应用研究Study on Combination of Underground Different Thermal Storable Aquifers and Cascaded Water Source Heat Pump System
- 牙轮钻机变频调速Speed regulating of gear wheel rigs by frequency conversion
- 1型type 1
- 牙轮钻机加压变频调速系统的研究A Study of Variable Freguency Regulating Speed System for the Pressurization Mechanism of Rotary Drill
- 该洞发育起于第四纪更新世早期或中期 ,属流入型地下河溶洞。Haizi cave originated in the early or middle stage,Pleistocenc, Quaternary, and is a kind of afflux underground river cave.
- 牙轮钻机主参数分析及其合理选择Analysis and Reasonable Choice of Main Parameters of Rotary Drill
- 上下交叠型地下硐室群overlap underground chambers
- 0-1型Zero--one type
- 牙轮钻机履带板调紧器的研制与应用Development and application of track shoe tensioner of toothed roller-bit drill
- 含水层型地下储气库惰性气体作垫层气概述Discussions on Inert Gas Taken as Cushion Gas in Underground Gas Storage with Aquifer
- 非1型non-one type
- 牙轮钻机电气调速系统移相电路的改造Reconstruction of Phase Shifting Circuit in Electric Speed Governing System of Geared Drill
- 1型险象1 type danger appearance
- 矿用牙轮钻机全数字化的直流调速系统Full-digital DC SR System of Mining Blast-Hole-Drill