水耕表层epipedon: 表土层; 表土特性anthropic epipedon: 耕醉层; 耕作熟化层; 人为表层cumulic epipedon: 堆垫表层fimic epipedon: 肥熟表层histic epipedon: 泥炭表层; 有机表层下载手机词典可随时随地查词查翻译