logarithmic spiral bevel gear
logarithmic spiral curve
logarithmic spiral double-curved arch dam
logarithmic spiral fitting
logarithmic spiral motion model
logarithmic spiral profile connection
logarithmic spiral sliding surface
logarithmic-spiral monochromator
tooth back of logarithmic spiral
semi-logarithmic line graph
equal-rise-angle spiral line
searching principle of spiral line
Spiral line total deviation
spiral-line interpolation
Double line-line voltage control
line-line extreme distance
line-line topological relation in traffic network