新年伊始，谨向广大的读者致以良好的祝愿与诚挚的谢意！《陕西煤炭技术》这份陕西煤炭系统唯一的综合性科技期刊，自1982年创刊以来，已发行48期，近9万册，遍及全国28个省、市、自治区煤炭、冶金、化工、机械、信息、图书等系统共400多个单位。陕西煤炭工业技术咨询委员会与 At the beginning of the new year, I hereby extend my best wishes and sincere gratitude to the readers. Shaanxi Coal Technology, the only comprehensive science and technology journal in Shaanxi coal system, has issued 48 issues and nearly 90,000 copies since its publication in 1982, covering all over the country’s 28 provinces, municipalities and autonomous regions such as coal, metallurgy, chemicals, machinery, Information, books and other systems a total of more than 400 units. Shaanxi Coal Industry Technical Advisory Committee and