span
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n. 跨度，跨距；范围
vt. 跨越；持续；以手指测量
n. (Span)人名；(捷)斯潘
n.
共轭（马、骡）；跨度，墩距；一段时间；[航] 跨绳
vt.
缚住或扎牢；跨越时间或空间；以掌测量；以手围绕测量类似测量
变形
复数：spans过去式：spanned过去分词：spanned现在分词：spanning第三人称单数：spans
双语释义
n.(名词)[C] 跨度,跨径 distance or part between the supports of an arch or a bridge
[C] 两个界限间的距离 a stretch between two thing, especially in time; period
[C] 一段时间 a length of time over which the stated thing continues or works well
英英释义
span[ /spæn/ ]
n.
the complete duration of something
"the job was finished in the span of an hour"
the distance or interval between two points
two items of the same kind
同义词：couplepairtwosometwainbraceyokecoupletdistichduoduetdyadduad
a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
同义词：bridge
the act of sitting or standing astride
同义词：straddle
v.to cover or extend over an area or time period
"The parking lot spans 3 acres"; "The novel spans three centuries"
同义词：crosstraversesweep
词汇搭配
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注意力持续集中的时间
life span寿命
memory span记忆持续时间
介词+～
measure by spans用指距来量
in a span在一段时间中
100 feet in span跨距一百英尺
bridge of three spans三孔桥
over a span of在…之中
～+介词
span of a bridge桥的跨度
span of knowledge知识面
span of life寿命
span of memory记忆的广度
span of ten years十年的时间
词组短语
life span寿命；使用期限
long span长跨度
time span时间跨度
span length跨度距离；杆间距离
attention span注意广度；注意力的持续时间
long span bridge长跨桥；大跨径桥
single span单跨；单孔
bridge span桥跨
spick and span崭新的，极干净的
memory span记忆广度；存储器容量
digit span数字广度
clear span净跨；净孔；净翼展
wing span翼展；翼层
同近义词辨析
territory, scope, range, spanterritory领土（的范围）
scope（处理、研究事物的）范围
range（种类或变化的）限度，范围，幅度，程度；视力或听力所达到的距离，声音所能传送的距离；（枪、炮、导弹等的）射程
span跨度，跨径；（某事物）自始至终的持续时间或期间
双语例句
用作名词(n.)
Modern medicine has increased man's life span.
现代医学延长了人的寿命。
He has settled here for a long span of time.
他已经在这儿定居很长一段时间了。
The arch has a span of 60 meters.
拱门的跨度为60米。
The spider has a leg span of 3 inches.
这个蜘蛛的腿的长度为3英寸。
The clear span of a bridge is the gap from the near edge of the next.
桥梁的净跨，是自一个桥墩的近侧边到相邻桥墩近侧边之间的间距。
用作及物动词(vt.)
The shipwrecks span nearly a century.
这些船只残骸已有近百年历史。
Little bridges span the canals.
小型的桥梁横跨在运河之上。
The gloom spans the whole novel.
阴郁的气氛贯穿着整部小说。
His knowledge spans many different areas.
他的知识遍及许多领域。
Imagination will span the gaps in our knowledge.
想像力会弥补我们知识的不足。
权威例句
Extension of Life-Span by Introduction of Telomerase into Normal Human CellsSpan: An energy-efficient coordination algorithm ...
Span: An energy-efficient coordination algorithm for topology maintenance in Ad Hoc wireless networks
HIV-1 dynamics in vivo: virion clearance rate, infected cell life-span, and viral generation time.
A life-span, life-space approach to career development
Discounting of delayed rewards: A life-span comparison.
Autophagy genes are essential for dauer development and life-span extension in C. elegans.
Leaf Life-Span in Relation to Leaf, Plant, and Stand Characteristics among Diverse Ecosystems
DAF-16 Target Genes That Control C. elegans Life-Span and Metabolism
A life-span theory of control
span
span: [OE] Span is of Germanic origin, with relatives in German and Dutch spanne, Swedish spann, and Danish spand. It originated in the notion of the distance between the tip of the thumb and the tip of the little finger. The verb span was derived in the 14th century from the noun. Its German relative spannen ‘stretch, tighten’ produced the derived noun spanner, which was borrowed by English in the 17th century.=> spanner
span (n.1)
"distance between two objects," from Old English span "distance between the thumb and little finger of an extended hand" (as a measure of length, roughly nine inches), probably related to Middle Dutch spannen "to join, fasten" (see span (v.)). The Germanic word was borrowed into Medieval Latin as spannus, hence Italian spanna, Old French espan "hand's width, span as a unit of measure," French empan. As a measure of volume (early 14c.), "what can be held in two cupped hands." Meaning "length of time" first attested 1590s; that of "space between abutments of an arch, etc." is from 1725. Meaning "maximum lateral dimension of an aircraft" is first recorded 1909.
span (v.)
Old English spannan "to join, link, clasp, fasten, bind, connect; stretch, span," from Proto-Germanic *spannan (cognates: Old Norse spenna, Old Frisian spanna, Middle Dutch spannen, Dutch spannan "stretch, bend, hoist, hitch," Old High German spannan, German spannen "to join, fasten, extend, connect"), from PIE root *(s)pen- "to draw, stretch, spin" (cognates: Latin pendere "to hang, to cause to hang," pondus "weight" (perhaps the notion is the weight of a thing measured by how much it stretches a cord), pensare "to weigh, consider;" Greek ponos "toil," ponein "to toil;" Lithuanian spendziu "lay a snare;" Old Church Slavonic peti "stretch, strain," pato "fetter," pina "I span;" Old English spinnan "to spin;" for other cognates, see spin (v.)). The meaning "to encircle with the hand(s)" is from 1781; in the sense of "to form an arch over (something)" it is first recorded 1630s. Related: Spanned; spanning.
span (n.2)
"two animals driven together," 1769, American English, from Dutch span, from spannen "to stretch or yoke," from Middle Dutch spannan, cognate with Old English spannan "to join" (see span (v.)). Also used in South African English.
1. emolsifier span
乳化剂斯盘
-- 来源 -- 英汉 - 翻译参考[网络]
2. Thanks to CNN, C/SPAN and the nightly news, many lawmakers have almost become celebrities in their own
承蒙CNN及C/SPAN和夜间新闻之抬爱，这些议员们都因个人的论调、举止成了名人。
-- 来源 -- 汉英 - 翻译参考
3. Span by span method
逐跨工法
-- 来源 -- 英汉 - 翻译参考[网络]
4. apprehension span
识别广度
-- 来源 -- 英汉 - 翻译参考[网络]
5. attention span
一个人能集中注意力于某一问题的时间
-- 来源 -- 英汉 - 翻译样例
6. navigation span
通航桥孔；航道跨
-- 来源 -- 英汉 - 翻译参考[网络]
7. span potentiometer
量程电位器
-- 来源 -- 英汉 - 翻译参考[网络]
8. structural span
结构跨度
-- 来源 -- 英汉 - 翻译参考[网络]
9. intermediate span
中间跨
-- 来源 -- 英汉 - 翻译参考[网络]
10. Clear span
净跨
-- 来源 -- 英汉 - 翻译样例 - 工程
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