起皱的过程；收缩成皱纹或交替的脊和沟。
corrugations — plural of corrugation
起皱的过程；收缩成皱纹或交替的脊和沟。
起皱的过程；收缩成皱纹或交替的脊和沟。
The process of corrugating; contraction into wrinkles or alternate ridges and grooves.
波纹表面上的凸起脊线
a ridge on a corrugated surface
搓板效应(土路或碎石路上出现波纹或凸起)。
washboarding (the appearance of ripples or bumps on a dirt or gravel road)
形成平行脊线和沟槽的过程
the act of shaping into parallel ridges and grooves
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