the recognition for radiant point and platform which lay a foundation of the sequential threatening estimation and situation estimation is an important part of electronic war faced to district.
辐射源和平台识别是面向区域电子战的一个重要组成部分,对后续的威胁估计和态势估计起奠基的作用。
therefore, when earth crosses this orbit, the radiant point of falling debris appears in perseus.
因此,当地球靠近这段轨道时,从辐射点落下的碎片就形成了英仙座流星雨。
our chart shows the radiant point in this annual shower – in the head of the constellation leo.
我们的夜空图显示这场流星雨的辐射点位于狮子座的头部。
can you see that you「ll observe more meteors when the radiant point is well above the horizon?
你有没有发现当辐射点远高于地平线时你可以观察到更多的流星?
of course, the trails point back to a radiant point in the constellation perseus, giving the meteor shower its name.
当然,沿着这条流星光迹反向延伸出去,就可以找到位于英仙座中的辐射点——这个流星雨正是因此而得名的。
the data fusion technology has a widely use in the recognition for radiant point and platform.
数据融合技术在辐射源和平台识别中的应用越来越广泛。
in this paper, we present a new rapid ray tracing method —available visible area radiant point tree ray searching.
本文给出了一种新型的快速的射线追蹤方法——有效可见区域辐射源树射线跟蹤法。
meteors in annual showers stem from comets, and the radiant point is the point in the sky where we cross the comet」s orbit.
这个来自彗星的流星雨每年都按时造访。辐射源指天上某个点由于地球与彗星轨道相交造成的。
before dawn, perseus – radiant point of the perseid meteor shower – is close to overhead.
在拂晓之前,英仙座流星雨的辐射点—英仙座将上升至我们头顶的天空的顶端。
university is important position of spreading advanced culture, is model and radiant point of social advanced culture.
高校是传播先进文化的重要阵地,是社会先进文化的示范区和辐射源。
before dawn, the constellation perseus – radiant point of the perseid meteor shower – is close to overhead.
天亮之前,英仙座流星雨的流星将接近头顶上空。
can you see that you「ll observe more meteors when the radiant point is well above the horizon?otherwise, some meteors are blocked by the body of earth itself.
只有在辐射点升至地平线上我们才能看到流星雨,有些流星在它未升至地平线上的时候就已经划过天空消失了。
our chart shows the radiant point in this annual shower – in the northern part of the famous constellation orion. you can find orion easily.
图表显示,这场流星雨的辐射源是在着名的猎户星座的正北方位,你可以很容易就找到它。
meteors in annual showers stem from comets, and the radiant point is the point in the sky where we cross the comet」s orbit. it's kind of like the point in the distance where train tracks converge.