So you want to cut the sapwood from the heartwood because the heartwood is extraordinarily strong and you use it for

此，你希望将边材从心材中分离出，心材异常坚固，适合用于需要承重压的柱子、横梁和类似结构。

And when a log gets to the sawmill, they're going to basically separate those two things because there's different uses for sapwood and for heartwood.

当到锯厂时，他们基本上会将边材和心材分开处理，边材和心材各有不同的用途。