日本工业标准_JIS R1671-2006 Testing method for water permeability and hydraulic equivalent diameter of porous fine ceramics_R 1671 2006 1 ?QUV wFx|j=Ot,nMo|?j*qw?&o|&A?GUMh?FpK? wFwU|U$Q?m?V|Z&?w?Z&|;?V|xZ&?w;?JZ&tb?DQUK?qt?Ib?&A?Gt|?j*qx|w?OsU$Q?m?V|Z&?w?Z&|;?V|xZ&?w;?JZ&tTT?tmMo|yx?hsM R 16712006 2