短語詞組短語bed of mortar 灰漿層;繙譯machine bed inserting mortar 曳引機(jī)座灌縫furrowed bed joint mortar 溝槽牀接縫灰漿bed -mortar method 座漿法bed d mortar 灰漿層furrowed d bed joint mortar 溝槽牀接縫灰漿bed d of mortar 灰漿層bed bricks in mortar 把甎固定在灰泥中Bed of cement mortar 薄層水泥砂漿 返回 bed mortar