由美国采矿协会主办的国际采矿展览于1978年10月9日至12日在Las Vegas举行,有50个国家三万多人出席了会议,将近600家展出了它们生产并用于采矿工业的机器、产品和维修设施。展品包括微型的高精度阀、最复杂的监测仪器、巨型矿用卡车等。展出期间举行了27次有关矿业 The International Mining Exhibition, sponsored by the American Institute of Mining, was held in Las Vegas from October 9 to 12, 1978, and more than 30,000 people from 50 countries attended the conference, bringing together nearly 600 machines on display at their facility for the mining industry , Product and maintenance facilities. Exhibits include miniature precision valves, the most sophisticated monitoring equipment, giant mining trucks and more. During the exhibition held 27 times about mining