干扰光栅几何形状的哼声的英文

positional hum

• 干扰:    disturb; obstruct; ...
• 光栅:    raster; optical gr ...
• 几何:    how much; how many
• 形状:    form; appearance; ...
• 的:    4次方是 The fourth po ...
• 哼声:    groaning; hum; hum ...