摘要 |
PROBLEM TO BE SOLVED: To provide a gas/liquid separation membrane which has homogeneously dispersed, independently formed vent holes with uniform sizes and exhibits high reliability and performance. SOLUTION: In this gas/liquid separation membrane, vent holes 3 are formed so as to allow a gas to pass through and so as to inhibit, by capillary force, a liquid from passing through. The vent holes, independent of each other and having uniform sizes, are formed by laser processing.
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