Early Paleozoic accretionary orogens dominated the Western Gondwana margin and were characterized by nearly continuous s......

针对传统支架的回撤工艺人力成本大、存在安全隐患等问题,提出了一种支架回撤新工艺。新工艺的应用,不仅减少了支架回撤的工序,更......

通过在10mm厚LF2铝合金板的不同位置嵌入示踪Fe粉,进行搅拌摩擦焊对接实验,焊后截取不同深度的水平面试样,采用扫描电镜对试样进行......

位于可可西里地区的马兰山冰帽,冰川覆盖了整个山体,冰川面积达195 km2,属极大陆型冰川.雪线海拔在5 340～5 540 m之间.大多数冰川末......

Along the recently evacuated shores of the retreating Dead Sea black mud deposits have been exposed and hence subjected ......