portable saw mill

例句：

1. 1. This portablesaw is perfect for small projects.
   这款便携式锯非常适合小型项目。
2. 2. The portable power saw isvery useful for cutting wood.
   便携式电锯在切割木材时非常有用。
3. 3. He used aportable miter saw to cut the angles of the boards.
   他用便携式圆锯切出了木板的角。