吸音材料的气流阻力器的试验方法的英文

standard test method for airflow resistance of acoustical materials

• 吸:    inhale; breathe in ...
• 音:    sound
• 材料:    material
• 的:    4次方是 The fourth po ...
• 气流:    air current; airfl ...
• 阻力:    obstruction; resis ...
• 器:    implement; utensil ...
• 试验:    experiment; test; ...
• 方法:    method; means; way ...