span

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基本解释

• n.时期；跨度；间距
• vt.延续；横跨；贯穿；遍及；弥补
• 动词spin的过去式形式.

词源解说

• 直接源自古英语的span，意为一个张开的手，大拇指与小拇指间的距离；最初源自中古荷兰语的spannen，意为加入，系紧。

词根记忆

• wingspan(n.翼展)

同根派生

• n性质的同根词

  spanner：扳手；螺丝扳手；测量器；用手掌量的人。

• span相关词

英汉例句

用作名词 (n.)

• The bridge has a span of 100 meters.
  这座桥跨度为100米。

• span更多例句

词组短语

用作名词 (n.)

动词+～

• have a span of 有…长〔宽〕
• lengthen 〔shorten〕 the span 延长〔缩短〕时间
• widen the span of knowledge 扩大知识面

形容词+～

• brief 〔short〕 span 短暂的时间
• whole span 全长

名词+～

• attention span 注意广度；注意力的持续时间
• life span 寿命；使用期限

• span更多词组

英英字典

剑桥英英字典

• (TIME) the period of time that sometimes exists or happens
• (LENGTH) the length of something from one end to the other
• (SPIN) past simple of spin
• (TIME) to exist or continue for a particular length of time
• (BRIDGE) If a bridge spans a river, it goes from one side to the other.
• →  spick and span

柯林斯英英字典

• A span is the period of time between two dates or events during which something exists, functions, or happens.
• Your concentration span or your attention span is the length of time you are able to concentrate on something or be interested in it.
• If something spans a long period of time, it lasts throughout that period of time or relates to that whole period of time.
• If something spans a range of things, all those things are included in it.
• The span of something that extends or is spread out sideways is the total width of it from one end to the other.
• a team of horses or oxen, esp two matched animals
• A bridge or other structure that spans something such as a river or a valley stretches right across it.

• span剑桥字典
• span柯林斯字典

专业释义

交通运输工程

• 跨距

  To speed, span and the stiffness of flag point by the effect of flow simulation, raised layout of the special guidance.
  对速度、跨距、悬挂点刚度对受流效果的影响进行模拟计算,并对接触网平面布置的特殊情况进行指导。

• 跨绳

土木建筑工程

• 跨度

  The steel roof structure of a gymnasium is a kind of large span string-dome structure system.
  某体育馆钢屋盖为大跨度弦支穹顶结构。

• 跨距

经济学

• 跨越

  At present, gradually-advance and span-progress are 2 major eco-tourism development models in Lin’an.
  4）目前临安市生态旅游发展中主要存在以白沙村与上坪村为代表的两种发展模式，跨越式和渐进式。

• 数值范围；极差

计算机科学技术

• 跨度

  After certain transformation, a linear program method can be obtained to solve the Span.
  对新的规荆做适当变换，就可以使用线性规划方法来求解跨度。

• 跨距

  This paper proposes a new rendering method span scanline tracing algorithm which is used to render the polygon scenes. This method can simulate specular lighting and transmitted lighting effect,and can be easing to be implemented.
  本文提出了一种新的具有高度真实感图形绘制方法——跨距扫描线跟踪方法，它适合绘制由多面体构成的场景，能模拟环境的反射和透射，并且算法简单，实现方便。

• 展开
• 张拓

体育

• 弯(弓)

航空、航天科学技术

• 翼展

物理学

• 量距刻度

数学

• 生成空间
• 生成，张成

机械工程

• 跨距
• 量程
• 弦长

能源科学技术

• 档
• 区段

电子、通信与自动控制技术

• 区段