【摘 要】
：
INTRODUCTION The author began his work in Shansi since 1919. The main aim of his work, as was the instruetiou of Dr. V K. Ting, director of The Geological Surv
【机 构】
：
National Geological Survey of China Peking.,
论文部分内容阅读
INTRODUCTION The author began his work in Shansi since 1919. The main aim of his work, as was the instruetiou of Dr. V K. Ting, director of The Geological Survey, was to survey a geological map on the scale of one to one million and examine the coal and iron resources which were known as exceptionally
INTRODUCTION The author began his work in Shansi since 1919. The main aim of his work, as was the instruetiou of Dr. V K. Ting, director of The Geological Survey, was to survey a geological map on the scale of one to one million and examine the coal and iron resources which were known as exceptionally
其他文献
在成矿过程中,铼主要同钼而较少同其他金属聚集在一起。铼的矿物富集体主要是辉钼矿,其次是黄铜矿、斑铜矿、黄铁矿、方铅矿及其他矿物。独立的铼矿物十分罕见。虽然有关文
作为一种特殊的教育类型,职业教育本质属性决定了其与区域经济有着更加紧密的联系,并直接为区域经济建设服务。“校企合作”作为链接职业学校和企业的有效办学模式,它必然会
近年来,中国邮政速递物流公司党委认真贯彻集团公司党组的决策和部署,充分发挥党委的领导核心作用,带领全系统干部员工以市场为导向,以客户体验为中心,创新经营机制,提升服务
香港科技协会与广东省科技委员会正筹划在珠江三角洲成立一个粤港科技合作促进会,加强两地合作,推动科技成果商品化的发展。香港科协主席何钟泰博士表示,上述计划初期目标侧
党支部处于企业生产经营和改革发展的第一线,承载着团结带领党员干部和员工群众完成生产经营任务的重要使命和责任。党支部书记作为党支部带头人,其思想认识和能力水平高低直
现代领导者,要善于把所在部门放在大环境中加以分析,这就是领导者正确的“形势观”。今日世界正处于全面跃迁的大变革时代,主流是在动荡中求变革、求发展,在认识混乱、思想
柴油机曲轴承受交变应力,其失效形式都为疲劳破坏。为了提高曲轴的抗疲劳损害能力,在工艺上可采取不同的强化措施,常见的有感应淬火、氮化处理、滚压、喷丸等。为了解喷丸强
前不久,国务院办公厅印发了2014年政府信息公开工作要点,对行政权力运行、财政资金、公共资源配置、公共服务、公共监管五个方面信息公开工作进行了部署。辽宁省代省长李希撰
为了便于制造和设计,机床多油楔向心轴承采用了形形色色的偏心圆弧的结构型式。本文是这方面实践的经验介绍。并且采用统一的方法分析各自的几何关系,导出各自在设计、制造
河南东秦岭分布着四个时代不同的蛇绿岩带,由北向南依次为:1.碾道沟—马市坪蛇绿岩带; 2.汤河—二郎坪—刘山崖—马畈蛇绿岩带;3.洋淇沟—柳树庄—卧虎蛇绿岩带;4.淅川—桐