It is an important guiding significance for industrial policy formulization to understand the scale and efficiency of timber processing enterprises.

摘要认识木材加工企业规模以及效率问题，对产业制定有重要意义。

It completes thoroughly the formulization of this method that Qin Jiushao limited the constant term in the numerical higher equation to be always negative.

秦九韶规定高次方程“实恒为负”,彻底完成了这一方法公式化。