求翻译：古筝中也有所区别，有13根弦，16根弦，18根弦，21根弦，最常用的是21根弦，通常古筝的型号前用S163-21，S代表S形岳山，是王巽之与缪金林共同发明，163代表古筝长度是163厘米左右，21代表古筝弦数21根是什么意思？

Zheng also differ, with 13 strings, 16 strings, 18 strings, 21 strings, most commonly used is the 21 string, usually used before Zheng's model S163-21, S on behalf of S-shaped Yueshan, Wang Xun is The co-inventor with Miujin Lin, Zheng on behalf of 163 163 cm length, 21 string zither number 21 on be

guzheng also differentiated, there is a 13 string string, 18, 16, 21, and is most commonly used for string 21 string zither, usually before the models used S S Representative S 163 - 21, the mountain is the king ticker of Guyana with 163 Representative Kim Lam, co-invented guzheng length is around 1

In the zheng also has the difference, some 13 strings, 16 strings, 18 strings, 21 strings, most commonly used are 21 strings, in front of the usual zheng model represents the S shape mountain mountain with S163-21, S, is king Xun trigram invents together with Miao Jinlin, 163 represent the zheng len

Zheng also differ, 13 strings, 16 strings, 18 strings, 21 strings, 21 is the most commonly used strings, typically model with S163-21,S before representatives of the Guzheng s-Takeyama, was Wang Xunzhi invention together with the Miao Jinlin, 163 for guzheng length is around 163 cm, 21 for koto stri

Zheng also differ, 13 strings, 16 strings, 18 strings, 21 strings, 21 is the most commonly used strings, typically model with S163-21,S before representatives of the Guzheng s-Takeyama, was Wang Xunzhi invention together with the Miao Jinlin, 163 for guzheng length is around 163 cm, 21 for koto stri