underlap¹[,ʌndə'læp]

• vt.部分地伸展至(某物)之下；局部置于…之下；部分重叠于…之下：

  The feathers of a bird's wing underlap each other.

  鸟翅上的羽毛是部分相互重叠的。

• 变形:

  vt.underlapped.underlapping

underlap²['ʌndə,læp]

• n.【电信学】欠重叠