差异变形 meaning in English

diffuse deformation

The regional deformation anomaly of medium - term phase ( 1 ~ 3 years or more ) before strong earthquake occurrence usually shows three aspects of common characteristics : for regional vertical deformation , it shows distribution features of anomalous uplift area and concentration belt - high gradient belt of vertical differential deformation ( some of them reflect distribution of four quadrants ) related to tectonics ; for horizontal movement , it shows features of centralized high strain area ( or zone ) of domination shear deformation related to active blocks and faults ; it shows common features of regional vertical deformation anomaly area and high strain distribution area of horizontal deformation
摘要强震前中期阶段（ 1 ~ 3年或稍长）区域性形变异常往往表现出3个方面的共性特徵：区域垂直运动变形呈现与构造有关的异常隆起区、垂直差异变形高梯度带（有的还呈“四象限” ）分布特徵；水准运动变形呈现与活动地块及断裂构造有关的、以剪切变形?主的高应变集中区（带）特徵；区域性垂直形变异常区与水准形变的高应变分布区共性的特徵。