Pirn's optical band is a key component of photo-electrical weft feeler of back reflection type.

纱管反光带系返回反光式光电探纬装置的重要组成部分。

youdao

Pirn's optical band is a key component of photo-electrical weft feeler of back reflection type.

纱管反光带系返回反光式光电探纬装置的重要组成部分。

youdao