用(Yong)于(Yu)工(Gong)程(Cheng)机(Ji)械(Xie)，(?)如(Ru)压(Ya)路(Lu)机(Ji)、(?)挖(Wa)机(Ji)、(?)推(Tui)土(Tu)机(Ji)、(?)盾(Dun)构(Gou)机(Ji)、(?)泵(Beng)车(Che)、(?)起(Qi)重(Zhong)机(Ji)等(Deng)。(?)

用(Yong)于(Yu)矿(Kuang)山(Shan)机(Ji)械(Xie)，(?)如(Ru)掘(Jue)进(Jin)机(Ji)、(?)输(Shu)送(Song)带(Dai)、(?)起(Qi)重(Zhong)机(Ji)等(Deng)。(?)

用(Yong)于(Yu)重(Zhong)型(Xing)汽(Qi)车(Che)的(De)驱(Qu)动(Dong)如(Ru)驱(Qu)动(Dong)桥(Qiao)、(?)变(Bian)速(Su)箱(Xiang)等(Deng)。(?)

用(Yong)于(Yu)农(Nong)业(Ye)机(Ji)械(Xie)如(Ru)拖(Tuo)拉(La)机(Ji)、(?)收(Shou)割(Ge)机(Ji)等(Deng)。(?)