通風管罩 的英文怎麼說

中文拼音 [tōngfēngguǎnzhào]
通風管罩 英文
ventilating jack
  • : 通量詞(用於動作)
  • : Ⅰ名詞1 (空氣流動) wind 2 (風氣; 風俗) practice; atmosphere; custom 3 (景象) scene; view 4 ...
  • : Ⅰ名詞1 (管子) pipe; tube 2 (吹奏的樂器) wind musical instrument 3 (形狀似管的電器件) valve;...
  • : Ⅰ動詞(遮蓋; 扣住; 套在外面) cover; overspread; wrap Ⅱ名詞1 (罩子) cover; shade; hood; casing;...
  • 通風 : 1 (使空氣流通) ventilate; air 2 (透氣) be well ventilated 3 (透露消息) divulge information;...
  • 管罩 : tube shield
  1. In this paper, the author established the model of objective evaluate parameters of sound quality and develope d an objective evaluation system which could give quantitative objective evaluate parameters, such as loudness, sharpness, roughness, psychoacoustics annoyance ( pa ) etc. paper also describes an subjective evaluation investigation ir " " hich 16 subjects used pair comparison statistical evaluation methods to evaluate the noise character of room air - conditioners, the results show that there is generality good agreement between quantitative objective evaluate sound quality parameters and subjective evaluation. at the same time an example of application of the technique to improve the noise character of room air - conditioner is offered

    此外本文還介紹了一個應用聲質量評價技術改進kfr - 50hw / e2d空調器聲質量的實例,過對空調器室外機系、導流、出網等進行改進,空調器的聲質量得到了明顯改善:在室外量提高164m ~ 3 / h情況下,聲音響度下降16 ,波動強度明顯改善,尖銳度指標也略有下降,作者同時總結了不同改進措施對產品聲質量影響的方式,以期為今後的聲質量改進提供借鑒。
  2. 1 the laboratory exhaust system includes exhaust duct works, exhaust fan, laboratory fume hood exhaust, laboratory canopy hood and cabinets needed venting

    實驗室排氣系統包括排氣路、排氣機、實驗室道、實驗室排和特殊存儲櫃的排氣道。
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