環型孔板 的英文怎麼說
中文拼音 [huánxíngkǒngbǎn]
環型孔板
英文
ring type orifice plate-
It is the propose of this paper to develop a method to reduce the noise level of ma60 apu without more weighting and other infection on airplane. to accomplish this object, a new type of micro perforated absorber is used
針對新舟60飛機apu本身的結構和環境特性，我們採用一種新興的環保型消聲材料-微穿孔板為上要吸聲結構完成降噪設計。
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