The rays of dusty ejected material extends some 900 miles from the Tycho impact site.

喷射出来的放射状物质从第谷的碰撞点向外延展了900英里。

They are radial threads that join up at the center of the web.

这些呈放射状的线在网的中间汇集。

And when that explosion happened as with many other craters it shot out jets of bright powdery dust, so that these rays that got out from it were very stripy.

它爆发时，就像其它许多弹坑一样，喷射出明亮的粉尘，所以这些喷发的放射状条纹很清楚。

His sapho-stained lips were drawn into a straight line with radial creases spreading upward.

他染上了紫红色的嘴唇被拉成一条直线，放射状的皱纹向上蔓延。

Here is the " kilometer zero" from which all the country's radial roads start.

这里是全国所有放射状公路的起点“零公里”。

You see, this shape is the epitome of radial network design—essentially every route originates from the downtown core and heads outwards, at different angles, towards the suburbs.

你看， 这个形状是放射状网络设计的典范——基本上每条线路都从市中心出发，以不同的角度向外延伸至郊区。