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

摘木材加工企业的规模以及效率问题，对产业政策制定有重的指导意义。

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”,彻底这一方法的公式化。