您要查找的是不是：
- U型通风系统U type ventilation system
- 系统system
- J型通风系统J-shape ventilation system
- “J”型通风系统"J" type ventilation system
- 型的thysanuriform
- 系统的systemic
- J型通风J-typed ventilation
- 信息系统information system
- 系统信息system information
- 系统管理员system administrator
- “Y”型通风"Y" ventilation
- 文件系统file systems
- 系统文件system file
- “U”型通风方式U-type ventilation
- 电动型通风干湿计motor driven psychrometer
- 这间办公室最近重新修缮油漆过, 通风系统得到了改善。The office has recently been refurbished and the ventilation system improved.
- 三进两回偏Y型通风方式three-down-two-up and inclined to Y type ventilation
- 隧道通风系统Tunnel ventilation system
- 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
- 组合通风系统combined ventilation system
