大学英语词汇短语释义解析及例句 concentric ring


释义：

concentric ring 同心环

例句：



This paper focuses on the concentric ring fractal array of the low side lobe characteristics in fractal antenna arrays.

在分形阵列天线中重点研究了具有低旁瓣特性的共心圆环分形阵。



You learn in grade school that each ring in a tree represents a year. But there's more information hidden away in these concentric rings.

我们在小学就已经了解到，树木的每圈年轮代表一年，不过这些同心圆还隐藏这更多的信息。



Metal cock ring soft seat surface pressure to the bearing surfaces, such as the valve core and valve seat is concentric ring surface can be a double tight closure.

金属旋塞表面压向阀座环软支座表面，如阀芯和阀座环表面是同心的，就能得到双重严密的关闭。



Nevertheless, the first such ring was observed in 1987. Now, a group of astronomers led by Tommaso Treu of the University of California, Santa Barbara, have seen two concentric rings.

但早在1987年由加大圣塔粑粑拉分校的天文学家TommasoTreu领导的小组就观测到了两个同心圆环。



The ring sight presents a set of concentric rings when it is illuminated by the target and the background. Brightness of the rings is in proportion to that of the target and the background.

在目标光和背景光的照射下，呈现出一组同心圆环，其亮度与目标和背景的亮度成正比。