考点在“命名”这个词上bíþç [÷;bbs.3c3t.com=Áå{I£Ð
题目是"小于0.074mm颗粒的质量百分率在5%左右“bíþç [÷;bbs.3c3t.com=Áå{I£Ð
沙砾土中当细粒土含量小于等于5%时称为砂土或砾土bíþç [÷;bbs.3c3t.com=Áå{I£Ð
当细粒土含量大于5%小于等于15%时称为含细粒砂土或含细粒砾土bíþç [÷;bbs.3c3t.com=Áå{I£Ð
所以要确定小于0.074mm的土的百分含量确切数值bíþç [÷;bbs.3c3t.com=Áå{I£Ð
那么小于0.074mm的土应用比重计法和移液管法bíþç [÷;bbs.3c3t.com=Áå{I£Ð
而移液管法适用与粒径小于0.074mm且比重大的土bíþç [÷;bbs.3c3t.com=Áå{I£Ð
5%左右的含量比重比较小了bíþç [÷;bbs.3c3t.com=Áå{I£Ð
所以用比重计法bíþç [÷;bbs.3c3t.com=Áå{I£Ð