关于筛分的问题？？？？？？？？？？？ [复制链接]

圆孔筛与方孔筛的对应关系 表2§º°tSAbbs.3c3t.comî8PÔÊ4‡E
圆孔筛孔径(mm)        对应的方孔筛孔径(mm)                §º°tSAbbs.3c3t.comî8PÔÊ4‡E
      100                                        75        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
      80                                        63        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
      63(或60)                              53        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
      50                                        37.5        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
     40                                        31.5        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
     31.5(或30)                           26.5        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
     25                                       19        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
     20                                       16§º°tSAbbs.3c3t.comî8PÔÊ4‡E
    16                                       13.2        §º°tSAbbs.3c3t.comî8PÔÊ4‡E
    10                                       9.5§º°tSAbbs.3c3t.comî8PÔÊ4‡E
    5                                         4.75§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   2.5                                       2.36§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   1.25                                     1.18§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   0.63                                     0.6§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   0.315                                   0.3§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   0.16                                     0.15§º°tSAbbs.3c3t.comî8PÔÊ4‡E
   0.075                                   0.075§º°tSAbbs.3c3t.comî8PÔÊ4‡E
　        　§º°tSAbbs.3c3t.comî8PÔÊ4‡E
注：圆孔筛系列中小于1.25mm的本来就是方孔筛。§º°tSAbbs.3c3t.comî8PÔÊ4‡E
摘录自《JTJ058-2000公路工程集料试验规程》，已作废，因为现在国标用石筛子也已改为方孔，因此现在有效的《公路工程集料试验规程(JTG E42-2005)》已取消这个表。§º°tSAbbs.3c3t.comî8PÔÊ4‡E