At the same time, the development of weapons is related to that adaptation—from rocks and stones to a set of hunting tools, and from hunting tools to rules relating to the proper use of weapons.
同时，武器的发展与这种适应有关——从石头和石块到一套狩猎工具，从狩猎工具到与正确使用武器相关的规则。
The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied.
研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。
The rules of hydrocarbon distribution are found:The distribution of effective source rocks in E23 and N1 formation is the precondition to discover hydrocarbon;
得到了本区新生代油气分布的几点规律：下干柴沟组上段（E23）和上干柴沟组（N1）作为本区的主力烃源岩是形成油气田的先决条件；
The rules of hydrocarbon distribution are found:The distribution of effective source rocks in E23 and N1 formation is the precondition to discover hydrocarbon;
得到了本区新生代油气分布的几点规律：下干柴沟组上段（E23）和上干柴沟组（N1）作为本区的主力烃源岩是形成油气田的先决条件；
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