标签：Accur - 英国华人论坛

GPS is a US military system designed for navigation and precise positioning. It consists of 24 earth-orbiting satellites, each with an on-board atomic clock. Accurate time combined with triangulation from a number of satellites can provide p...英国华人论坛

AccuracyWhen you list your items on eBay, write an accurate description. You do not have to write long paragraphs of rambling information but provide exact measurements, colors, condition, etc. Be extremely precise when it comes to your desc...英国华人论坛