pneumatic marking pen

例句：

1. 1. This pneumatic marking pen is incredibly precise and easy to use.
   这款气动标记笔非常精确且易于使用。
2. 2.The artist used this pneumatic marking pen to create a beautiful landscape painting.
   这位艺术家用这款气动标记笔创作了一幅美丽的风景画。
3. 3. The pneumatic marking pen was used to label the product before it went into production.
   这款气动标记笔在产品进入生产前被用来标记。