| 1. | Marine rigid and flexible ducting
船用硬质和挠性空气管道 |
| 2. | Methods of testing hvac air ducts
Hvac空气管道的试验方法 |
| 3. | Air duct smoke detector
空气管道式感烟探测器 |
| 4. | Air pipeline equipment
空气管道设备 |
| 5. | Components of air duct
空气管道组件 |
| 6. | Air piping filter
空气管道过滤器 |
| 7. | Ventilation for buildings - ductwork - dimensions of circular flanges for general ventilation ; german version en 12220 : 1998
建筑物内通风.空气管道.一般通风用圆形法兰尺寸 |
| 8. | Ventilation for buildings - ductwork - requirements for ductwork components to facilitate maintenance of ductwork systems ; german version env 12097 : 1997
建筑物通风.空气管道.空气管道系统维护用空管组件要 |
| 9. | The operation of the cleanness oil less - - - - - - the preparation lubrication design eliminated the air piping lubrication and the oil - fog letting
清洁无油的运行? ?预润滑设计消除了空气管道润滑和油雾排放。 |
| 10. | Sampling procedures for the monitoring of radioactivity in air ; instructions for the calculation of particle loss in sampling air ducts and instructions on estimates of errors due to anisokinetic sampling
空气中放射性监控的取样.根据估计值对取样空气管道和 |
