levelling stone是什么意思
中文翻译整平石
网络释义
1)levelling stone,整平石2)rubble leveling,抛石整平3)rubble mound foundation levelling,抛石基床整平4)rubble bed leveling barge,基床抛石整平船5)stone finishing,石整6)Qingping No.1"bottom-sitted levelling ship for rubble of foundation bed,"青平1号"座底式基床抛石整平船