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英语翻译1、An absolute location can be transformed into a relativ

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英语翻译
1、An absolute location can be transformed into a relative location-relative to a second reference point,that is.However,a second absolute location is not always available.(只有前面这句需要翻译,后面是供大家参考翻译的语境)In reverse,we can use triangulation to determine an absolute position from multiple relative readings if we know the absolute position of the reference points.But we often can't know these positions if the reference points are themselves mobile.Thus,the absolute versus relative distinction denotes primarily what information is available and how the system uses it rather than any innate capabilities.
2、The worldwide satellite constellation has reliable and ubiquitous coverage and,assuming a differential reference or use of the Wide Area Augmentation System,allows receivers to compute their location to within 1 to 5 meters
第3个需要翻译的地方:For example,a laptop equipped with a GPS receiver can access a separate database that contains the positions and geometric service regions of other objects to provide applications with symbolic information.Linking real-time train positions to the reservation and ticketing database can help locate a passenger on a train.
在表示一个绝对位置时,可以将其转化为一个相对位置,即相对于第二个参考地点绝对位置的位置,然而当然了,这个第二个参考位置不一定存在
卫星群可以对整个地球有一个可靠且全面的覆盖,这时如果你有另一个参考点或者是广域增强系统(这个上网查查吧,网上有),你就可以自己计算你的位置了,误差在1到5米
举个例子,一个有GPS接收器的电脑可以进入一个单独的,储存有其他物体位置或者手机的服务区位(猜的)的数据库并向软件开发商提供象征性的信息.将火车的位置和车票和预订服务器联系起来可以帮助我们寻找一个特定的旅客
再问: 第一句话的意思是不是想说在将一个绝对位置转变成相对位置的时候,往往需要第二参考地点。但这个参考地点的绝对位置并不总是必要的?
再答: available 不是比要的的意思,是可用或是存在,不好意思少翻译一句,“但这个参考地点的绝对位置我们可能无法得到