Energy Variation Principle

general variation principle

Gurtin variation principle

Hamilton variation principle

Hu-Jiujin Variation Principle

springback variation principle

time-domain variation principle

principle of variation

interdecadal variation and interannual variation

Seasonal variation of diurnal variation

‘bamboo’ shape variation error

∧ bounded variation

∧-bounded mean variation

∧-essential variation

∧-function of bounded variation

20 years temporal and spatial variation

24-hour Runoff Variation

3-D total variation

3D variation

3-dimensional variation