v.
stir up (water) so as to form ripples
同义词：ripplerufflerifflecockle
occur in soft rounded shapes
同义词：roll
move in a wavy pattern or with a rising and falling motion
"The curtains undulated"
同义词：rollflapwave
increase and decrease in volume or pitch, as if in waves
"The singer's voice undulated"
MATERIAL WITH UNDULATING SHAPE
Bounding and undulating flight in birds
Undulating paired disclinations (oily streaks) in lyotropic liquid crystals
Undulating screen for vibratory screening machine and method of fabrication thereof
Stent having a multiplicity of undulating longitudinals
A comparison of linear and daily undulating periodized programs with equated volume and intensity for strength.
Mechanical control of swimming speed: stiffness and axial wave form in undulating fish models
The Continuous Plankton Recorder: concepts and history, from Plankton Indicator to undulating recorders
3D Simultaneous Localisation and Map-Building Using Active Vision for a Robot Moving on Undulating Terrain
3D Simultaneous Localisation and Map-Building Using Active Vision for a Robot Moving on Undulating Terrain
