Wireless measurements occur between MS and BTS and the major measurement parameters include signal level, signal quality, timeadvance and so on.
无线测量集中在移动台与基站之间，主要测量信号电平、信号质量、定时提前量等等。
2
Time management is an important set of service. RTI provides these services to coordinate federates' timeadvance and the exchange of messages between federates.
其中时间管理是一类很重要的服务，是为了保证正确地实现成员间仿真时间的协调推进和数据交换。
3
It is a good idea to build a whelping box well in advance so the bitch has time to get used to it.