1) main fracture
主干断层
1.
Large amount of geological material was studied with statistics and geomechanics method,and the distribution law of factures in Cuijiagou mine has been found out:the main fractures are along NNE and SN directions,other small fractures are controlled by the main fractures.
利用统计分析、相关因素、地质力学分析方法对崔家沟井生产中积累的大量实际地质资料进行分析研究 ,找出了崔家沟井田范围内断层发育展布的规律 ,即近SN向及NNE向断层是本区的主干断层 ,共它小断层为其派生产物 ,小断层的展布受主干断层的控制。
2) main sections
主干断面
1.
For the purpose of getting information on health risk caused by pollutants in the Yangtze River,five main sections of the Yangtze River in Jiangsu Province were selected and organic compounds,heavy metals and boron element in water were monitored.
为掌握长江水环境中污染物的健康风险,选取长江江苏段5个主干断面,对其水环境中主要有机物、重金属及非金属元素硼进行了监测。
3) master control fault
主控断层
1.
It is difficult to study the master control faults by routine method,because intense tectonic movements make their up-throw sides be denuded and lack many strata.
强烈的构造运动使高邮凹陷南部断阶带主控断层上升盘遭受剥蚀而缺失大套地层,难以用常规方法对其进行研究,而断层落差分析法恰恰能弥补这一不足,从而可以明确断层形成时期及发育历史。
4) principal thrust fault
主冲断层
6) trunk layer
主干层
1.
The article demonstrates that trunk layer is important and is base on telecom restructuring and realization FTTH.
本文论述了当前电信本地光缆网存在的问题,提出了本地光缆网中继及主干层的规划思路及发展策略,重点阐述了主干层的规划思路,充分论证了主干层应该作为以后本地光缆网建设的重点,为电信转型及实现FTTH做好充分准备。
补充资料：米字型国道主干线
米字型国道主干线：在国家规划建设的%26#8220;四纵四横%26#8221;大通道中，经过西安的有三条，加上原来规划的主干线系统，以西安为中心的%26#8220;米%26#8221;字型辐射状干线公路全部纳入了正在建设的国道主干线和西部大通道之中，其密度和形状在全国所有省会城市中都是独一无二的。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条