“波纹的”用英语怎么说？

膜片可以是扁平的,或是波纹的.The diaphragms may be flat or corrugated.在使用表面具有波纹的钢辊作电极时,就存在压力影响问题.The pressure problem is met by using corrugated steel rolls as the electrodes.我们从古代资料了解到她的头发是浅红色的, 有波纹的.We know from ancient source that ...