span

（桥墩间的）墩距英释nnthe part of a bridge, arch etc that goes across from one support to another

1 life span,寿命；使用期限

2 long span,长跨度

3 time span,时间跨度

4 span length,跨度距离；杆间距离

5 attention span,注意广度；注意力的持续时间

6 long span bridge,长跨桥；大跨径桥

7 single span,单跨；单孔

8 bridge span,桥跨

9 spick and span,崭新的，极干净的

10 memory span,记忆广度；存储器容量

11 digit span,数字广度

12 clear span,净跨；净孔；净翼展

13 wing span,翼展；翼层

1 The bridge crosses the river in a single span..河上的桥为单跨桥。