micro-spontaneous potential caliper
SP spontaneous potential
Spontaneous Potential Log
SPONTANEOUS POTENTIAL LOGGING
Spontaneous Potential Method
spontaneous potential SP
spontaneous potential SP logging
Spontaneous Potential Well Logging
Spontaneous potential well-logging
spontaneous-potential method
adiabatic potential curve
core potential potential energy function
current-potential curve
non crossing rule of potential curve
curve-curve intersection
transition curve；easement curve；spiral transition curve