简介 Step cut 阶梯切割 一级级像楼梯级般的切割面。绿柱石形及长阶梯形切割都是阶梯切割的例子。
整个曲面屋顶被切割成无数阶梯，每一级阶梯上表面为花岗岩石材，侧面嵌植绿化条带。
All of the roof is cut into stairs which act as both stone stairs and green belt.
针对细胞微超声振动切割系统对超声变幅杆的要求，将等截面圆柱形阶梯变幅杆的一端替换成圆锥形变幅杆构成一种复合圆锥阶梯形变幅杆。
By studying ultrasonic amplitude transformers to meet the requirements of an ultrasonic vibration cell cutting system, a new compound cone step type amplitude transformer is constructed.
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