您要查找的是不是：
- Spraying speed in air duct 风管喷风速度
- Conclusion:Washing through tracheal in tubation is effective in clearing obstruction in air duct,improving ventilation function,correcting respira... 结论:气管插管冲洗可迅速开通气道,解除呼吸道痰堵,清理上、下呼吸道分泌物,是改善通气功能,纠正呼吸衰竭和进行辅助呼吸的有效方法。
- The paper introduces the experimental facilities for combining stealth device in air duct with turbofan engine.How the flow deflector affects the flow field of air duct was ascertained. 摘要介绍了进气道隐身装置与某涡扇型发动机地面联合试验的设备组成与试验方法，分析了风扇形吸波导流体的隐身原理。
- The speed of sound in water is about four as great as in air. 声音在水中的速度是空气中的四倍左右
- He sucked in air, then went under the water again. 他深深吸了一口气又潜到水里。
- It's unlimited to drive cars at high speed in country. 在乡村开快车没有限制。
- Measurement of sound speed in air 空气中声速测量实验研究
- Designed to operate on land, water, or in air. 长于陆海空作战的，三栖的可在陆上、水上或空中操作的
- Accuracy is more important than speed in his new job. 对他的新工作，准确比速度更重要。
- XPS Board used in air duct of central air conditioning XPS板用在中央空调风管上
- External air duct and exhaust pipe connector. 外置式出入油管连接座。
- How much does sound travel faster in water than in air? 声音在水中比在空气中传播快多少？
- Speed in performance or movement. 动作迅速在表演或行动中迅速
- Exhaust gas has been incriminated in air pollution in cities. 废气已过视为城市空气污染的原因。
- You must drop your speed in built-up areas. 在房屋密集区必须放慢速度。
- She crawled onto the river bank and lay there gulping in air. 她爬上河岸,躺在那里喘着大气。
- He drove at top speed in order to catch the plane. 他为了能赶上飞机而以最快的速度行驶。
- No consideration of the grounding for air duct and air-condition. 风管及空调设备没有考虑接地。
- Speed in performance;promptness. 动作敏捷;迅速
- Lists some Japanese enterprises dealing with air duct cleaning. 列出了日本几家开展空调风管清扫业务的企业。
