pen nib

1. 钢笔尖：pen motor ==> 记录笔电动机 | pen nib ==> 钢笔尖 | pen oscillograph ==> 描笔式示波器,笔式示波器

2. 笔尖清洁剂：笔尖清洁剂 pen handle | 笔尖清洁剂 pen nib | 鸭嘴笔尖(圆规) pen point

1. pen nib

1. Doctors said the pen had eroded so much that its cap and nib could have easily broken and caused gastric perforation if not removed.

noun