a span of中文什么意思

• 一段（时间）

• span:    span1 〔古语〕 spin 的过去式。
• span by span method:    移动支架逐跨施工法; 逐跨工法
• abutment span:    岸墩距; 边跨; 近岸跨
• adjacent span:    邻跨
• adjoining span:    邻接跨; 邻跨

例句与用法

1. It has a span of 4260 feet . the bridge is so long that the shape of the earth had to be taken into account by its designer .
   桥的跨度有4，260英尺。桥梁很长，所以它的设计师不得不考虑地球的形状。
2. The celebrations would last over a span of two weeks
   庆祝活动将持续两个多礼拜。
3. Over a span of time , a final agreement is reached
   经过一段时间后，达成最终的协议。
4. Many changes will take place in a span of 30 years
   在三十年内，几许沧海桑田，变化无穷。
5. The arch has a span of 60 metres
   那个拱的跨度为60米