And the height of water flowing fractured zone in overburden strata is calculated by the empirical formula and is measured with a simple hydrological observation method according to drilling on spot.
用经验公式对覆岩导水裂隙带高度进行了计算，采用简易水文观测法对覆岩导水裂隙带高度进行了测定。
2
Verified by drilling, EH4 continuous measurement of electrical conductivity profiles were measured in Benxi iron ore exploration, and achieved good results.
本溪大台沟铁矿勘查中进行了EH 4连续电导率剖面测量，经钻探验证，取得了较好的效果。
3
In this paper, welding residual stress vertical to welding seam in LY12 armour aluminum alloy was measured by hole-drilling and electrical-measurement method.