- 1
A span is the distance or length between two ends of something, like the span of a bridge or a bird's wingspan. It's also used for a length of time, like someone's attention span.
跨度、(時間)一段
組成A span was originally the length of a hand stretched wide open, from thumb tip to little-finger tip — an old, body-based way to measure distance.
原始詞典資料22 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
Spanname
- 1
A surname.
spannoun詞源 1/spæn/
- 1
The full width of an open hand from the end of the thumb to the end of the little finger used as an informal unit of length.
- 2
Any of various traditional units of length approximating this distance, especially the English handspan of 9 inches forming ⅛ fathom and equivalent to 22.86 cm.
- 3
A small space or a brief portion of time.
- He has a short attention span and gets bored within minutes.
- "Why in ten thousand years scarce will the rain and storms lessen a mountain top by a span in thickness?"
- 4
A portion of something by length; a subsequence.
- For example, in OpenOffice.org or Microsoft Word, each span of text can have a style that defines key characteristics about the text: • What font it uses • Whether it's normal, bolded, italicized, […]
- 5
architecturebusinessconstructionThe spread or extent of an arch or between its abutments, or of a beam, girder, truss, roof, bridge, or the like, between supports.
- The force of the explosion demolished one pair of piers and two spans of the bridge crashed down into the river on top of the barges.
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architecturebusinessconstructionThe length of a cable, wire, rope, chain between two consecutive supports.
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nauticaltransportA rope having its ends made fast so that a purchase can be hooked to the bight; also, a rope made fast in the center so that both ends can be used.
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A pair of horses or other animals driven or sold together; usually, such a pair of horses usually being similar in color, form, and action.
- A span of water buffalo, terrified out of their usual lethargy by sight of the plane, stampeded, pursued by a swearing and scarcely less terrified Hindu farmer.
- A span of goats harnessed to a cart is second only to ponies, in a child's estimation; therefore, the beginning of this lesson may well be a span of goats thus employed.
另外 3 個記錄的用法
- 9
mathematicssciencesThe space of all linear combinations of vectors within a set.
- 10
computingengineeringmathematicsThe time required to execute a parallel algorithm on an infinite number of processors, i.e. the shortest distance across a directed acyclic graph representing the computation steps.
- We use the term span (also called depth, or dependence depth) to refer to the number of parallel steps assuming an unbounded number of processors.
- 11
wingspan of a plane or bird
spanverb詞源 2/spæn/
- 1
To extend across (a gap or space between two sides).
- The suspension bridge spanned the canyon.
- The rivers were spanned by arches of solid masonry.
- 2
To cover or extend over (an area or distance).
- The parking lot spans three acres.
- The forest spans the entire valley.
- 3
To extend through (a period of time).
- The novel spans three centuries.
- His career spanned five decades.
- 4
To measure by the span of the hand with the fingers extended, or with the fingers encompassing the object.
- to span a space or distance; to span a cylinder
- Mine hand alſo hath laid the foundation of the earth, and my right hand hath ſpanned the heauens: when I call vnto them, they ſtand vp together.
- 5
mathematicssciencesTo generate an entire space by means of linear combinations.
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datedTo be matched, as horses.
- 7
To fetter, as a horse; to hobble.
- We spanned the dogs high up a corrie to the south of the ridge […]
這個拼法也被記錄為下列字的變化形：
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。