indentation

缩排, 呈锯齿状, 缺口, 印凹痕英释中释na cut into the surface or edge of something

1 indentation test,压痕试验

2 indentation method,刻痕法，压痕法

3 indentation hardness,压痕硬度

1 Make an indentation in the center of each cookie..在每块甜饼干的中间挖一个缺口。