其特征在于它包括定位体，电控透光的十字坐标板和定位珠；
The utility model is composed of a positioning body, an electric control translucidus cross coordinate board and a positioning ball;
胶线分别穿过两排定位管，连接靠背和坐垫的硬塑料通风管、木珠和弹性边框；
Rubber wire through these two rows of fixing tubes connects ventilating tube of chair back and cushion wooden beads and elastic frame.
抽签被刻印的数字珠仔将放到被朝下放各一指定位置，以便对手在游戏未结束时看出你的号码或轻易地被透露。
The number chip being drawn will then be placed on the score ball faced down so that people cannot see what your Numbers are and can be easily be revealed when the game finished.
抽签被刻印的数字珠仔将放到被朝下放各一指定位置，以便对手在游戏未结束时看出你的号码或轻易地被透露。
The number chip being drawn will then be placed on the score ball faced down so that people cannot see what your Numbers are and can be easily be revealed when the game finished.
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