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- air ducted propeller 导管空气螺旋桨
- External air duct and exhaust pipe connector. 外置式出入油管连接座。
- In this thesis ,the steady performance of ducted propeller in uniform flow is predicted by surface panel method. 本文应用基于扰动速度势的低阶面元法，拟计算导管螺旋桨在均匀流场中的定常水动力性能。
- No consideration of the grounding for air duct and air-condition. 风管及空调设备没有考虑接地。
- 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。
- In this thesis, the stead hydrodynamic performance of ducted propeller in uniform flow is predicted by lifting-surface method and surface panel method. 本文应用基于扰动速度势的面元法和升力面理论的耦合方法，计算导管螺旋桨在均匀流场中的定常水动力性能。
- Presents an introduction to Italian ALP air duct system. 提出了风管合流数和系统经济数的概念。
- A theoretical method for predicting the steady/unsteady performance of ducted propeller is presented,in which an unsteady panel method is applied both for the duct and propeller. 本文提供了一个计算导管螺旋桨的定常及非定常性能的基于速度势的非定常面元法,桨和导管的相互影响是通过在时域范围内迭代计算处理。
- The numerical results obtained by present method show that the proposed method is effective for predicting the steady/unsteady performance of ducted propeller. 算例计算结果表明，本方法可以有效地应用于导管桨的定常及非定常性能的预估。
- HVAC system ---Thermal insulation for the air duct and pipe system of HVAC. 空调系统---送风软管及管道法兰的保温各类罐体、设备的绝热保温及吸产降噪。
- Rectify the gap at final connections between air duct and grille / louvre. 修补通风喉管与通风格栅/百?风口接驳处的空隙。
- One of the air ducts has become blocked. 有一条输气管堵塞了.
- In order to inquire into the inner velocity field of ducted propeller, the windows were set inside the duct of a ducted propeller, which allowed optical access for LDV measurements. 摘要为了探讨导管内流场，通过在导管壁上开窗口，使用LDV激光穿过窗口方案来测量导管螺旋桨的内流场。
- The sealing material for air duct going though walls not good, it will cause shrinkage. 某些风管穿墙处,密封材料不好,会变形萎缩。
- Remove combustible insulation or rectify flame-retardant property at * air duct / pipework / air handling unit. 通風喉管／管道／風櫃的易燃隔熱層須予拆除或其防火特性須予矯正。
- exit vane in rear of ducted propeller 桨后整流支架
- The bronchial lavage has achieved a good effect in diagnosing diseases of air duct in neonatus clinic. 在新生儿临床亦逐渐应用支气管灌洗于诊治气道疾病,并取得满意疗效。
- Inspecting whether the brackets and cradles for the air duct and condensate pipes are reliable. 检查风管及冷凝水管固定支架、吊架是否牢固。
- Nagel easy company is willing to work with you to work together to promote the cause of China's air duct cleaning! 易格尔公司愿与您共同努力，一起推动中国风管清洗事业！
- Double pipe cyclone air duct Normal highway vehicle adopts double pipe cyclone air duct filtering device + normal air filter. 双管旋风进气道普通公路用车采用双管旋风进气道滤清装置+普通空气滤清器。
