| 摘要 |
The bag has diffusers (D1, D2) provided below a bag upper surface in a plane. The diffusers are formed of material strips arranged each other and/or consist of fabrics with elongated-shaped flow openings. The diffusers are arranged in the plane in an area of an inlet opening and attached at the bag upper surface with a surface of less than 10 percent, where the width of the material strips is defined by the diameter of the inlet opening. The elongated-shaped flow openings are formed parallelly and/or meander-shaped and/or zigzag-shaped. |
