thin seam

常見例句

Burn through is the main problem of longitudinal seam welding of ultra-thin tube with small diameter. Assembly of the joint and welding technology are the key to solve the problem.
小直徑超薄壁管縱縫焊接的主要問題是燒穿，解決這個問題的關鍵是嚴格控制焊接接頭的裝配質量及焊接工藝。
This paper introduces the structure, principle, equipment set on mining face, mining technology of BSHK-2DM coal auger for thin seam, and its application situation in Xinwen Mining Group.
本文介紹了從烏克蘭引進的BSHK 2DM型薄煤層用螺旋鉆采煤機的結構、原理、工作面配套設備和開采工藝，以及該設備在新汶礦業(yè)集團的使用情況，并對螺旋鉆采煤機在薄煤層的使用前景提出了幾點看法。
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。