A NSA model of impact anechoic chamber ispresented herein theoretically.文章首先经过推导和计算,得出了一套计算紧缩型暗室的归一化场地衰减(NSA)理论值模型.It is the important reference for the evaluation of anechoic chamber performances.为评估全电波暗室的性能提供重要技术依据.Noi...
Use to display listings in an area displayed in groups.用于显示位于组中所显示的区域中的列表.Check a listings magazine for what's on this weekend.查一下娱乐指南杂志,看这个周末有什么节目.Disclaimer : We do our best to insure accuracy on our listings.Disc...
The sidewalks were paved with brick and lined with trees.人行道铺着砖,两边种着树。a paved area near the back door后门旁一块石板地The wide paved road degenerated into a narrow bumpy track.铺好的宽阔道路渐渐变窄,成了一条崎岖不平的小径....
能见度很差。Visibility was poor.能见度为。019。The visibility readout is .019.尽管能见度极差,飞机由雷达导航返航了.The pilot homed in by means of radar, despite the poor visibility....