spiral

• n. 螺旋；旋涡；螺旋形之物
• adj. 螺旋形的；盘旋的
• vt. 使成螺旋形；使作螺旋形上升
• vi. 盘旋；成螺旋形；螺旋形上升（过去式spiraled/spiralled，过去分词spiraled/spiralled，现在分词spiraling/spiralling，第三人称单数spirals，副词spirally）

来自拉丁语 spipralis,旋转的，螺旋的，来自 spira,线圈，绕圈，来自 PIE*sper,转动，旋转， 可能来自 PIE*spen,弯，转，纺织，词源同 spider,spin.

1. a plane curve traced by a point circling about the center but at ever-greater distances from it

2. a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle

3. ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center

4. a structure consisting of something wound in a continuous series of loops;

"a coil of rope"

5. flying downward in a helical path with a large radius

spiral

spiral: [16] Spiral comes via French spiral from medieval Latin spīrālis ‘coiled’, a derivative of Latin spīra. This in turn went back to Greek speira ‘coil’. English also acquired the noun, as spire [16], which is used for the ‘tip of a spiral shell’. It is not the same word as the spire of a church [OE], which originally meant ‘stalk, stem’, and may go back ultimately to the base *spī- (source of English spike ‘pointed flower head’ and spine). The spiraea [17] is etymologically the ‘coiled’ plant; and spiraea in turn was used to form the term aspirin.
=> aspirin, spiraea

spiral (adj.)

1550s, from Middle French spiral (16c.), from Medieval Latin spiralis "winding around a fixed center, coiling" (mid-13c.), from Latin spira "a coil, fold, twist, spiral," from Greek speira "a winding, a coil, twist, wreath, anything wound or coiled," from PIE *sper-ya-, from base *sper- (2) "to turn, twist." Related: Spirally. Spiral galaxy first attested 1913.

spiral (v.)

1726 (implied in spiraled), transitive, from spiral (n.). Intransitive use by 1834. Transferred and figurative sense by 1922. Related: Spiraling.

spiral (n.)

1650s, from spiral (adj.). U.S. football sense is from 1896. Figurative sense of "progressive movement in one direction" is by 1897. Of books, spiral-bound (adj.) is from 1937.

The birds circled in a slow spiral above the house.

鸟儿在房子上空缓缓盘旋。

牛津词典

the destructive spiral of violence in the inner cities

市中心贫民区日益严重的暴力行为

牛津词典

measures to control the inflationary spiral

控制日益恶化的通货膨胀的措施

牛津词典

the upward/downward spiral of sales

日渐上升 / 下降的销售额

牛津词典

A snail's shell is spiral in form.

蜗牛壳呈螺旋形。

牛津词典

The plane spiralled down to the ground.

飞机盘旋降落。

牛津词典

the spiralling cost of health care

急剧上涨的医疗费用

牛津词典

Prices are spiralling out of control.

物价飞涨，失去控制。

牛津词典

Vines spiraled upward toward the roof...

藤蔓盘旋着朝屋顶方向生长。

柯林斯高阶英语词典

...a bullet spiralling out of a gun barrel...

从枪管里飞旋而出的子弹

柯林斯高阶英语词典

Production costs began to spiral.

生产成本开始急遽上升。

柯林斯高阶英语词典

...a spiralling trend of violence...

暴力急遽上升的态势

柯林斯高阶英语词典

House prices will continue to spiral downwards.

房价将继续暴跌。

柯林斯高阶英语词典

Objective : To probe into the value of spiral CT multiplane reformation ( MPR ) in clinical diagnosis.

目的: 探讨螺旋CT多平面重建技术在临床诊断中的价值.

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Previous investigations have identified a smaller central barred structure and four spiral arms.

先前的调查确认银河系具有一个较小的中央棒状结构及四条旋臂.

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All types of complete spiral steel tube equipment are designed and manufactured by the company.

我公司设计、生产各种类型的螺旋钢管成套设备.

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The reinforced concrete circular columns with circular spiral reinforcement show excellent behavior when subjected to loads.

密配圆形螺旋箍筋的钢筋混凝土圆柱在外荷载作用下表示了良好的力学性能.

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Mold with spiral ejection pin was designed for the mass production of threaded nylon cock.

为批量生产带有螺纹的尼龙旋塞,设计了一种带有螺旋顶杆的旋塞注塑模.

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Heat transfer mechanism, structure and its fabrication of spiral plate heat exchanger are introduced.

介绍螺旋板式换热器的传热机理 、 结构和制造工艺,列举了该换热器在合成塔中的应用.

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Spiral ( swirling ) flow is a sort of special and regular vortex movement.

螺旋流是湍流中一种特殊的、规则的涡旋运动.

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NGC 1512 is a barred spiral galaxy in the southern constellation of Horologium.

NGC1512是一个处在南天时钟座的棒旋星系.

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It praised the tea: " The copper wire, spiral, her hair, fruity floral, Xianshuang Sheng Jin. "

人们称赞此茶: “ 铜丝条, 螺旋形, 浑身毛, 花香果味, 鲜爽生津 ”.

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The present situation and advance in development of a spiral grooved turbo booster pump are reviewed.

综述了涡轮分子增压泵的研究现状与进展.

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Objective To study the application value of spiral CT in the diagnosis of gallbladder carcinoma.

目的探讨螺旋CT在胆囊癌诊断中的应用价值.

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Experts watch the spiral development in industry with keen interest.

专家们以很大的兴趣观察工业的螺旋式的发展.

辞典例句

Their profits began to spiral down disastrously.

他们的利润开始螺旋形地急剧下降.

《简明英汉词典》

Objective To prove the spiral CT findings and diagnostic criteria of unresectable pancreatic carcinoma.

目的讨论不能手术切除的胰腺癌CT表现及诊断标准.

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This is the exit of the museum. I like the spiral stairs.

这是博物馆的出口. 我个人非常喜欢这个螺旋形楼梯.

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The new economy does not mean we'll never have anther recession or even a deflationary spiral.

新经济并不意味着我们将永远摆脱新一轮的衰退或是避免落入通货紧缩的旋涡.

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Spiral welded pipe to improve product quality and stability of the company's strong support economic efficiency.

螺旋焊管产品质量的稳定提高是公司经济效益提高的有力保障.

期刊摘选