GEabbr.美国通用电气公司（=General Electric Coabbr.地面设备（=ground equipment）abbr.锗（=germanium）Geheen.吉

1. It gives the scientific voice way of horizontal crustal stress by gravity.
   给出了重力所致水平地应力的科学表达方式。
2. Vertical stress makes rock stratum reforming voussoir beam, horizontal in-situ stress is the main source to cause the voussoir beam crushed.
   竖直方向地应力使顶板岩层形成铰接拱结构，水平地应力是拱铰压碎的主要力源。