forward edge of receive wave
Double-Edge Round-Edge Edge-Grinding Machine
Nonlinear Wave-wave Interaction
hybrid wave of vortex wave and inertia-gravitational wave
refracted wave; refraction of wave; refraction wave
four-edge Prewitt edge operator
Leading-Edge and Trail-Edge
Pseudo Wire Emulation Edge-to-Edge
ratio of main cutting edge and side edge
accumulative frequency of wave height in a wave train
compression wave， P-wave
compressional wave and shear wave