阶步是断层两盘岩石相对错动时在断层面留下的痕迹。多年来阶步一直作为判断断层两盘运动的标志，并在实际运用中取得了良好的效果。
利用断裂带的共轭节理、断面擦痕和阶步及显微构造反演恩施断裂3个主要变形期的运动学和动力学特征。
The kinematic and dynamic features of the Enshi fault in the 3 main deformational phases are analyzed by means of the striations on fault planes, conjugate joints and microstructure in fault zone.
她一步迈四阶楼梯，把自己锁在她的房间里了。
She took the stairs four at a time and locked herself up in her room.
最后一步是创建一个色阶调整层来调整最终图像的对比度。
The last step is to create a Levels adjustment layer to get the final contrast of the matte painting.
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