因此也不清楚俄罗斯为什么将要生产与GPS相兼容的接收机，这些接收机与美国的类似设备相比，成本更高、信号强度弱而且精度更低。
It is therefore unclear why Russia should manufacture GPS-compatible transceivers that cost more, emit less clear signals and are less accurate than their U.S. equivalents.
除此之外，建立信息传输路径并维护足够的信号强度还需要一些中间设备。
Additionally, a number of intermediate devices are typically involved in setting up a path for the information transfer and for maintaining adequate signal strength.
对用X射线CCD作测量设备的在线针孔相机信号强度进行了估计。
The signal intensity was estimated for on-line measurement X-ray pinhole camera with CCD as measurement equipment.
对用X射线CCD作测量设备的在线针孔相机信号强度进行了估计。
The signal intensity was estimated for on-line measurement X-ray pinhole camera with CCD as measurement equipment.
应用推荐