环拱 meaning in Chinese

ring arch

One of the stars shall be bigger than the others , with its circumcircle s diameter being 310ths of the height of the flag , and shall be placed in the left ; the four other stars shall be smaller , with their circumcircle s diameter being 110th of the height of the flag , encircling the big star on its right in the shape of an arc
旗面为红色，长方形，其长与高为三与二之比，旗面左上方缀黄色五角星五颗。一星较大，其外接圆直径为旗高十分之三，居左；四星较小，其外接圆直径为旗高十分之一，环拱于大星之右。