All subordinate clause are tree's leafage.所有从句都是树的叶子.Some plants have neither root nor leafage.有些植物既无根又无叶.Finally my nerves gave andand bolted, through the unfamiliar plantation , tangled vines and rustling leafage....
航图是专门用于导航的一种地图.Charts are a map adapted specially for navigation.本文提出了一种用于车辆导航的地图匹配算法.An improvement of map matching method for vehicle navigation system is presented.星间测距是重力测量卫星和卫星自主导航的关键技术.Inter - satellite ranging is ...