1) census tract
普查地段
2) reconnaissance stage
普查阶段
3) geological survey
地质普查
1.
Taking Jinjiazhai coal mine geological survey work,Qianxi county,Guizhou province as example,the article quantificationally and synthetically estimates the stability of the mining coal bed and compares with the traditional qualitative estimation methods,with the indexes of change of coal bed s thickness,coal bed s mininipossibility,and its structure.
文章以贵州省黔西县金家寨煤矿地质普查工作为例,利用矿区煤层厚度的变化、煤层的可采性、煤层结构等指标,对矿区内可采煤层的稳定性进行了综合性定量评价,并与传统的定性评价方法进行了对比探讨。
4) seismic reconnaissance
地震普查
6) Crustal stress general survey
地应力普查
补充资料：地段
1.犹区域，指地面上的某一段。
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