Gyokuheishou

...There are dongxiao of various lengths, but unlike the Japanese shakuhachi, the inclination of the cut end of the mouthpiece faces inward and is not carved out as much. Today, there are three types of dongxiao in China: the Fenghuangxiao, the Yubixiao, and the Qinxiao (also known as the Yaxiao). The Fenghuangxiao has a tube diameter of about 2.2 cm and six holes. The Yubixiao has a thin tube diameter of 1.05 cm, is made of pale yellow bamboo, and has six holes. ...

*Some of the terminology explanations that mention "Yukbyeoso" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…長短いろいろな長さの洞簫があるが，日本の尺八と異なり，吹き口の切口の斜面が内向きで，えぐり方が小さい。今日の中国の洞簫は鳳凰簫，玉屛簫，琴簫(別名雅簫)の3種があり，鳳凰簫は管の直径が約2.2cm，6孔。玉屛簫は管の直径1.05cmと細く，淡黄色の竹で製作され，6孔。…

※「玉屛簫」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報