论文部分内容阅读
能源部已于1992年12月15日以能源技[1992]1174号文件发布《液压支架通用技术条件》等11项煤炭行业标准,见本期新发布的煤炭行业标准及有关的国家标准表中最后11项,文件规定这11项标准自1993年7月1日起施行。
The Ministry of Energy released 11 coal industry standards such as “Technical Specifications for Hydraulic Supports” issued by Energy Technology [1992] No. 1174 on December 15, 1992. See the newly released coal industry standards and relevant national standards in this issue The last 11 items stipulated that these 11 standards shall come into force on July 1, 1993.