Retrofits introduced in roof ventilators

• 1. 屋顶通风机用电气柜及屋顶通风机 [P] . 中国专利： CN206908164U . 2018.01.19
• 2. 一种对屋顶水箱进行改造的方法及其所得到的屋顶卫生水箱 [P] . 中国专利： CN103590446B . 2015.05.13
• 3. Retrofits introduced in ventilators [P] . BR7207528D0 . 1974-08-29

  机译： 呼吸机的改造

• 4. Retrofits introduced in boiao for roof tiles [P] . BR7024564D0 . 1973-01-30

  机译： 博iao引入的屋顶瓦翻新改造

• 5. Retrofits introduced in caps to bottles retrofits introduced in caps to bottles [P] . BR7804931A . 1980-02-05

  机译： 瓶盖引入的改造瓶盖引入的改造

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• 5. DESIGN AND DEVELOPMENT OF A LOW-COST ROOF TOP SOLAR VENTILATOR [C] . Ragavanantham Shanmugam, Umayakumar Vellaisamy, Karthikeyan Balasubramaniam, ASME International Mechanical Engineering Congress and Exposition . 2019
• 6. Seismic design repair and retrofit strategies for steel roof deck diaphragms. [D] . Franquet, John-Edward. 2010
• 7. Assessing the impact of introducing the ventilator bundle on outcomes for mechanically ventilated patients [O] . D Harrison, K Rowan 2007
• 8. Experimental Winter Monitoring of a Light-Weight Green Roof Assembly for Building Retrofit [O] . Fabiana Frota de Albuquerque Landi, Claudia Fabiani, Anna Laura Pisello 2021

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