Clapper

(noun.) metal striker that hangs inside a bell and makes a sound by hitting the side.

(noun.) someone who applauds.

整理:莱缪尔

• As soon as the current flows, the coils become magnetic and attract the soft iron armature, drawing it forward and causing the clapper to strike the bell. 伯莎M.克拉克. 科学通论.

手打:曼弗雷德