局部通风：矿山生产期间对无贯穿风流的独头工作面或独头硐室采用局扇加强通风。
Local ventilation: Portable blow is adopted by the airless end or airless adit for ventilation.
简要介绍“邯邢冶金矿山管理局物资管理信息系统”的研制开发情况、系统的主要功能和特点。
The paper gives a brief presentation of the development, major function and characteristics of the goods management information system for Hanxing Metallurgical Mines Administrative Bureau.
“我一直说这几年，但它肯定属于聋子的耳朵在上msha的联邦矿山安全与卫生管理局”Oppegard说。
"I've been saying this for years, but it certainly falls on deaf ears at MSHA (the federal Mine Safety and Health Administration)," Oppegard said.
“我一直说这几年，但它肯定属于聋子的耳朵在上msha的联邦矿山安全与卫生管理局”Oppegard说。
"I've been saying this for years, but it certainly falls on deaf ears at MSHA (the federal Mine Safety and Health Administration)," Oppegard said.
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