目数（mesh）2345678101214161820242830323540424548506065708090微米（μm）80006700475040003350280023601700140011801000880830700600550500425380355325300270250230212180160目数（mesh）1001151201251301401501601701751802002302402502703003254005006008001000134020005000800010000微米（μm）15012512011511310910696908680756261585348453825231813106.52.61.61.3目数，就是孔数，就是每平方英寸上的孔数目。
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