Third-order River-crossing Leveling
3、4 order leveling surveying
first and second order leveling
First Order Leveling Resurvey
the Second Order Leveling
2-D third-order time-average moment spectrum
bisphenoid of the third order
compensation of third-order dispersion
conditioned reflex of third order
family of third-order nonlinear dispersive PDEs
function of third order
generalized third-order KdV equation