fasciculus dorsalis背: body's back侧: slant; sloping束: bind; tie枕额背侧束: dorsal nucleus of occipitofrontal fasciculus脊髓小脑背侧束: dorsal spinocerebellar tract; posterior spinocerebellar tract; tractus spinocerebellaris posterior下载手机词典可随时随地查词查翻译