variograph

例句：

1. 2.
   用于绘制各种图形的
2. 3.
   指
3. 1. The variograph is used to draw various shapes on paper.
   绘图机用来在纸上绘制各种形状。
4. 2.The variograph was invented by a scientist who wanted to create more efficient tools for his research.
   一个科学家发明了绘图机，他想创造更高效的工具来研究。
5. 3.The variograph is an essential tool for artists and designers who need to create complex designs quickly.
   对于艺术家和设计师来说，绘图机是一个必要的工具，他们需要快速地创建复杂的设计。