A.砂的粗細(xì)程度按細(xì)度模數(shù)分為粗、中、細(xì)三級(jí)
B.砂的粗細(xì)程度按細(xì)度模數(shù)分為粗、中、細(xì)、特細(xì)四級(jí)
C.砂的細(xì)度模數(shù)范圍：粗砂3.7~3.2；中砂3.1~2.2；細(xì)砂2.1~1.6
D.砂的細(xì)度模數(shù)范圍：粗砂3.7~3.2；中砂3.1~2.2；細(xì)砂2.1~1.6；特細(xì)砂1.5~0.7
E.砂的細(xì)度模數(shù)范圍：粗砂3.7~3.1；中砂3.0~2.3；細(xì)砂2.2~1.6；特細(xì)砂1.5~0.7

A.豎向擠壓
B.徑向擠壓
C.軸向擠壓
D.環(huán)形擠壓
E.水平擠壓