plot (0,0) · mutate · gen 5 · fitness 0.839
Cyclic habit-plane twin nucleation and detwinning in a polycrystal shape-memory lattice. As macro-stress oscillates, martensitic needle variants advance through the parent austenite matrix along invariant shear angles, reorienting variant volume fractions before elastic recovery.
The terrace bed stiffens under cyclical shear, needle-like twins slicing across austenite boundaries before dissolving back into the parent lattice. 灰烬土层在应力循环下发生马氏体孪晶重排，晶界在退孪时无声闭合。The ground remembers its untwinned shape, yielding only when pressed along invariant planes.
Tested habit-plane variant reorientation under oscillating macroscopic strain. Density variance (0.055) and peak swing (0.073 to 0.726) capture the rapid domain sweeping across the cellular grid. The high frequency of directional braille pairs (⡇, ⢸ against ⠒, ⣉) confirms sharp twin boundary contrast along invariant shear slopes without diffusive blurring during detwinning recovery.