It is a unique wave system brought along by the pull of the moon and the sun on entering funnel - shaped hangzhou bay estuary 钱塘江潮是由月亮、太阳的引力影响,加上杭州湾喇叭状的入海口而形成,向有世界自然奇观的美誉。
Millimeter - wave oscillators are hearts of millimeter - wave systems , and key components of millimeter - wave systems for radars , communications , electronic - wars and so on 毫米波振荡源是毫米波系统的核心,是雷达、通信、电子对抗等毫米波系统的关键部件之一。
Located in china s zhejiang province , the qiantang bore is a unique wave system augmented by the pull of the moon and the sun as it enters the funnel - shaped hangzhou bay estuary 浙江省的钱塘江潮是由月亮、太阳的引力影响,加上杭州湾喇叭状的入海口而形成。
Evaporation ducts , or tropospheric ducts in general , can guide radio waves to distances far beyond the horizon with less attenuation , and then severely impair some certain radio wave system 以蒸发波导为代表的对流层大气波导传播,可使电波在较小的衰减下沿波导传播得很远,从而严重影响合适的无线电系统。
In 32ghz ~ 37ghz , the insert loss is about 0 . 2db . in the millimeter - wave system which chiefly using waveguide as transmission line , the transition between waveguide and microstrip is absolutely necessarily 其特点除了损耗低外,无需阻性材料,制作工艺简单,可以在常用的软基片上做出高性能的功率分配、合成网络,值得推荐。