One time I came home to find a note on the front door that led me to another note, then another, until I reached the walk-in closet.
一天我回到家，看到前门上贴着一张便条，它把我引向另一张便条，然后是另一张，一直把我引到家里可进入的壁橱。
Further, it is interesting to note that the order in which DB2 has returned the results exposes how the recursion is processed one level at a time, instead of using a tree-walk.
而且，令人感兴趣的是，DB2返回结果时所依照的顺序暴露了递归如何逐层地而不是采用遍历树的方法进行处理。
How was it possible to walk for an hour through the woods and see nothing worthy of note?
在树林中走了一个小时而没有见到什么值得注意的东西，这怎么可能呢？
How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note?
我问自己在树林中走了一小时，怎么可能什么值得注意的东西都没有看到呢？
One time I came home to find a note on the front door that led me to another note, then another, until}reached the walk-in closet.
一天回家时，我发现门上贴着一张字条，上面的文字将我引向另外一张字条，就这样，我接连发现了几张字条后，就来到了壁橱前。
How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note?
我问自己，在树林中走了一小时，怎么可能没有发现任何值得注意的东西呢？
How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note? I who cannot see find hundreds of things to interest me through mere touch.
我问自己，在林中溜达了一个小时而竟没有看到什么值得注意的东西，这怎么可能呢？我这个看不见东西的人，仅凭触摸就发现千百种使我感兴趣的东西。
On the aspect of distance and direction measuring, we use Kalman filter, it can translate all different sensor information into single, the robot can search the note and walk close to the wall.
在距离测量和方向测量方面，本文采用数据融合方法，使各个不同传感器的单模信息融合成总的单模信息，清扫机器人通过这个总的单模信息来寻找节点到墙面的行走方向。
How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note I who cannot see find hundreds of things to interest me through mere touch.
我问自己，在林中溜达了一个小时而竟没有看到什么值得注意的东西，这怎么可能呢我这个看不见东西的人，仅凭触摸就发现千百种使我感兴趣的东西。
How was it possible, I asked myself, to walk for an hour through the woods and see nothing worthy of note I who cannot see find hundreds of things to interest me through mere touch.
我问自己，在林中溜达了一个小时而竟没有看到什么值得注意的东西，这怎么可能呢我这个看不见东西的人，仅凭触摸就发现千百种使我感兴趣的东西。
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