Chilling and humid region of high elevation
cold semi arid region with high elevation
dipping at high angle and thickness ore-body
drilling with high water level and large elevation angle
High angle belt conveyer
high angle cross-bedding
high angle deviated well
high angle drilling lubricant
high angle fracture open
high angle gravel packed well
high angle micro-fracture
high angle oblique- slip fault
high angle planar normal fault