You see that it defines how to map each method to a particular table and column and specifies which columns are primary keys, finder methods, and so on.
从这段代码中可以看出，它定义了如何将一个方法映射到一个特定的表和列上，并指定哪些列是主键、查找方法，等等。
One in ten mobile phone users in the U.S. used a location-based service such as a map, friend or restaurant finder in Q4, 2008.
在美国2008年第四季度的调查中，有十分之一的手机用户使用如地图、交友或者餐馆查询等手机定位服务。
EMIEW 2 can deliver drinks or documents and take visitors to the right place while navigating desks, chairs, and corridors using map generation and a scanning range finder.
EMIEW2能递送饮料或者文件，还能使用地图生成和扫描测距仪引导来访者到达正确的桌子、椅子和通道。
CrossWalk NYC: cross-street finder, subway map, and guide.
人行横道纽约：跨街取景器，地铁地图，引导。
A novel topological map is proposed in this paper, and its nodes are represented with the visual scale-invariant features and the beam features of the laser range finder.
提出了一种新型拓扑地图；该地图用激光的扇区特征和视觉的比例不变特征来联合表示节点。
Laser range finder has been widely used in map building, locating and tracking in Robotics.
激光雷达已被广泛应用于移动机器人地图构建、定位以及跟踪等任务。
A novel topological map is proposed in this paper, and its nodes are represented with the visual scale-invariant features and the beam features of the laser range finder.
该地图用激光的扇区特征和视觉的比例不变特征来联合表示节点。
A novel topological map is proposed in this paper, and its nodes are represented with the visual scale-invariant features and the beam features of the laser range finder.
该地图用激光的扇区特征和视觉的比例不变特征来联合表示节点。
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