| 摘要 |
This invention relates to a deaerating film formed by laminating a solid gas-permeable layer firmly on a fibrilated porous resin film. An air valve is provided on the side of a liquid inlet of a deaerating module using a gas-permeable film, for example, the film mentioned above, the deaerating in the deaerating module is done after the bubbles in the liquid introduced into the same module have been removed via the air valve. |
