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。
Smaller concentric circles on the end give a nice ring pattern and some areas of darker shading at the bottom of the log give it some depth.
最终为小同心圆给一个不错的铃声模式，在日志底部和黑暗的阴影部分地区给予一定的深度。
This paper studies the problem of free transverse vibration of circular plates with an arbitrary number of the concentric elastic ring supports, a new analytical solution is presented.
本文研究受任意个同心弹性环支图板的横向自由振动问题，给出了一个新的解析解法。
The complex has a striped and concentric-ring shape.
其岩体形态为条带状和同心环带状。
The article designs a special dial thickness gauges that measures the distance between ring-steps in two concentric bores.
设计一套特殊测厚规测量两个环形凸台的距离，这两个环形凸台位于两个同心孔内。
The invention relates to a hanging ring concentric lock, belonging to the field of concentric lock structure technique.
本发明涉及一种挂环同心锁，属于同心锁具结构技术领域。
A raw material ageing ring trough concentric with kiln bottom is arranged on site at inner side of annular kiln bottom and blank making machine is arranged in the center of the site.
在环状窑底内侧的场地设置一个与窑底同心的环形原料陈化仓槽，制坯机设置在场地的中心部。
Its root tuber has multilayer concentric circularity similar to "annual ring lines" at the initial stages of development, and grows and enriches at the same year.
块根在发育的初期具有类似“年轮纹路”的多层同心圆结构，当年产生，当年充实。
The additional light-emitting diodes are fixed to the light body in such a way that the optical axes thereof form a concentric light spot in the form of a ring around the main light spot.
多个附加发光二极管固定在照明本体上，以这样的方式它们的光轴形成一个环绕主照明区的同心环形照明区。
The other end of each steel plate is welded on another annular steel plate, and the annular steel plate and the steel ring are concentric.
钢板另一端焊在另一环形钢板上，环形钢板与钢圈同心。
The other end of each steel plate is welded on another annular steel plate, and the annular steel plate and the steel ring are concentric.
钢板另一端焊在另一环形钢板上，环形钢板与钢圈同心。
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