常用电容器示教板可供教师授课和学生学习电容器的种类用，能直观地向学生展示常用电容器的实物，以利加深对电容外形与结构的识认。
J2319 Capacitor Used Teaching Board
Capacitor plates used for teachers teaching and students to learn the type of capacitor used to visually demonstrate to the students of the capacitor used in kind t to the deep structure of the capacitor with the appearance of identification.