短語詞組短語loud -speaker aperture 機(jī)箱揚(yáng)聲器孔隙band loud -speaker 薄帶揚(yáng)聲器;翻譯;薄帶揚(yáng)聲器英語piezoelectric loud -speaker 壓電式揚(yáng)聲器magnetic loud -speaker 簧舌式揚(yáng)聲器electrostaboutic loud -speaker 靜電揚(yáng)聲器 返回 loud speaker