drafting technique

例句：

1. 1. The engineer used a computer program to improve the drafting technique.
   工程师使用计算机程序来提高绘图技术。
2. 2.The artist's skill in sketching is an essential part of his drafting technique.
   艺术家在草绘方面的技能是他绘图技巧的重要组成部分。
3. 3. The company has invested in training its employees in more advanced drafting techniques.
   该公司投资于培训其员工掌握更先进的绘图技术。