thin out of coal seam

基本解釋

Based on an example from Datong Coalmines Group, the paper analyses possibility and usage of heavy plow under the conditions of thin seam coal face with Two Hard Roofs and gives out some proposals.
介紹了新型刨煤機的主要性能和結構特點以及使用條件，結合晉城礦區(qū)煤層賦存條件，論證了刨煤機在晉城礦區(qū)使用能大幅度地提高綜采工作面煤炭塊率。
Therefore, the conventional staggered distance model of ultra-close thin coal seam group during combined mining is put forward; and the theoretical research and physical simulation are carried out.
因此提出極近距離薄煤層群聯(lián)合開采常規(guī)錯距開采模型，并進行理論和物理模擬試驗研究。