Drafting pencil
01
绘图铅笔, 精密自动铅笔
a mechanical or lead pencil with various lead thicknesses (e.g., 0.5mm, 0.7mm) for precise and consistent lines
例子
The architect used a drafting pencil to carefully outline the building's floor plan.
建筑师使用绘图铅笔仔细勾勒出建筑的平面图。



























