The proper size of coal pillars and mining width for partial mining are studied with theory of continuum mechanics.

本文用连续介质力学的理论，探讨了条带法开采的合理条带尺寸。

youdao

The proper size of coal pillars and mining width for partial mining are studied with theory of continuum mechanics.

本文用连续介质力学的理论，探讨了条带法开采的合理条带尺寸。

youdao