When a slot is cut in middle length hole post and stall method with hard ore,it is often used to cut raise or to cut raise and entry.
坚硬矿石内中深孔房柱法切割立槽的开掘,通常使用切割天井拉槽法或切割天井与切割平巷联合拉槽法。
Strontium-doped solid solution of hollandite (SDSSH) was successfully prepared using strontium carbonate (SrCO3), barium carbonate (BaCO3), alumina (Al2O3), and titanium oxide (TiO2) as raw materials by designing formulas and high temperature solid phase reaction.
以碳酸锶(SrCO3)、碳酸钡(BaCO3)、氧化铝(Al2O3)和二氧化钛(TiO2)为原料,通过配方设计,用高温固相反应合成掺锶(Sr)碱硬锰矿固溶体。
The single phase solid solution of hollandite solid-soluted cesium was synthesized in Cs2CO3, BaCO3, Al2O3 and TiO2 as raw materials by high temperature solid phase reaction.
以cs2CO3、BaCO3、Al2O3和TiO2为原料,通过高温固相反应,合成了单相的固溶Cs的碱硬锰矿固溶体。
The design of formulas and the chemical solid-soluted content of strontium in solid solution of hollandite were investigated by X-ray diffraction, scanning electron microscope and wave dispersion spectrum.
以SrCO3、BaCO3、Al2O3和TiO2为原料,通过配方设计,采用高温固相反应,合成了单相固溶Sr的碱硬锰矿固溶体。