GuanNing, China Xin altogether garden hoe dishes, insightful there is a slice of gold, tube flick hoe and tile stone not different, hua catch and throw to.
文言文：管宁，华韵共园中锄菜，见地有片金，管挥锄与瓦石不异，韵捉而掷去之。
Hydraulic back-hoe dredger is a new type of dredger developed and specially for handling hard soil and stone.
液压反铲挖掘船是近几年国际上新出现的一种新型挖掘作业船，专门挖掘硬质土和石块。
应用推荐