direct solar radiation on perpendicular plane
load perpendicular to plane
multirod plane plane resonator
Control plane (0-plane)
H-plane and E-plane bends with a corner cut
out-of-plane rotation with in-plane rotation
plane and anti-plane strain
plane position indication [= plane position indicator] {= PPI}
plane to plane contact element
single-plane (through-plane service) service
a few types of synoptic(perpendicular motion) precipitation
a nonlinear perpendicular flux ob-server
absolutely perpendicular
after perpendicular {= AP}
after perpendicular section