Aar=Aad*(100-Mf)/(100-Mad)=6.67*(100-2.00)/(100-1.50)=6.64
某空气干燥基煤样,经分析得Aad为6.67,Mad为1.50,并已知其外在水分含量Mf为2.00,试将空气干燥基灰分换算成收到基和干燥基灰分.