(Table 2) Velocity-dependent friction parameters for DFDP-1A ultramylonite, 77.8 m

a-b < 0 indicates stick-slip occurred during either Vo, V, or both.当`a - b < 0`时，表明在Vo、V二者其一或两者同时作用的过程中发生了粘滑（stick-slip）现象。