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- U型通风系统U type ventilation system
- J型通风系统J-shape ventilation system
- “U”型通风方式U-type ventilation
- “J”型通风系统"J" type ventilation system
- U型波纹管的优化设计系统Optimization design system of U-shape bellow
- J型通风J-typed ventilation
- U型U shape
- “Y”型通风"Y" ventilation
- U型壳U - shell
- 电动型通风干湿计motor driven psychrometer
- U型槽U -Shape Groove
- 三进两回偏Y型通风方式three-down-two-up and inclined to Y type ventilation
- U型箍U-ferrule
- 公路隧道纵向通风系统射流风机选型计算Selecting Model And Calculation of Jet Fan In Longitudinal Ventilating System For Vehicular Tunnel
- U型拉槽U cutting
- Y型通风沿空留巷支护匹配技术Supporting Matching Technology of Gob Side Entry Retaining for Y-type Ventilation
- U型挡板U stop prate
- 利用B型通风方式治理瓦斯的理论计算与研究Theoretical Calculation and Study of Gas Emission Control by Using Type-B Ventilation System
- U型螺钉U type screw
- 近距离煤层群工作面的偏W型通风方式及其应用Bias W-type Ventilation in Short-interval Coal Seam Group Face and Its Application
