· =Positioning and Location System 位置测定系统 · =Pan American World Airways 泛美航空公司[美] · =Parts Application Reliability Data (book)元件应用可靠性数据(手册) ..
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他们的建议很简单：在出发之前，你一定要预先知道怎样走—— 而更好的办法，就是使用全球位置测定系统作导航。
Their advice is simple: before you go anywhere, make sure you have the right directions—or, better yet, a global positioning system (GPS) for navigating.
研究队伍制造出一个软件能测定节点最佳的位置，把干扰减至最低并提高网络系统的性能。
The team created software that could determine the best locations for the placement of nodes to minimise interference and increase the performance of the network.
探险队在那个地点做了记号，读取了全球定位系统测定的那个地点所在位置，并于去年8月返回该地点挖掘遗骸。
The team marked the site, took a GPS reading of the location, and returned last August to excavate the remains.
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