总体结构为“两环、两轴、五组团”。
而前台程序主要进行内外两环的数值计算。
And the foreground program mainly carried out the digital calculation of inside loop and outside loop.
又铸四个金环，安在柜的四脚上，这边两环，那边两环。
He cast four gold rings for it and fastened them to its four feet, with two rings on one side and two rings on the other.
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