Along the grain must be polished, and not the opposite, and do not polish or along the diagonal across the grain.

一定要顺着木纹打磨，而不要逆向操作，也不要沿斜线打磨或横穿纹理。

youdao

Along the grain must be polished, and not the opposite, and do not polish or along the diagonal across the grain.

一定要顺着木纹打磨，而不要逆向操作，也不要沿斜线打磨或横穿纹理。

youdao