adj. 1. 螺旋形的，盘旋的，盘旋上升的。 2.【数学】螺线的。 短语和例子 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。 n. 1.螺旋形物。 2.螺簧；【物理学】螺线。 3.【数学】螺(旋)线。 4.【航空】盘旋，盘旋降落〔又叫 spiral down〕。 5.(足球运动的)旋球。 6.(物价等)不断加剧上升或下降。 短语和例子 a spiral line 螺线。 a spiral spring 螺(旋弹)簧，蜷簧。 a spiral stair 螺旋梯。 an inflationary [a vicious] spiral 恶性通货膨胀。 vt.,vi. 1.(〔英国〕 -ll-) 使成螺旋形。 2.【航空】盘旋降落[上升]。 3.(物价)螺旋上升[跌落]。 adv. -ly
in the shape of a coil 同义词：coiling, helical, spiraling, volute, voluted, whorled, turbinate,
to wind or move in a spiral course; "the muscles and nerves of his fine drawn body were coiling for action"; "black smoke coiling up into the sky"; "the young people gyrated on the dance floor" 同义词：gyrate, coil,
move in a spiral or zigzag course 同义词：corkscrew,
form a spiral; "The path spirals up the mountain"
flying downward in a helical path with a large radius
a structure consisting of something wound in a continuous series of loops; "a coil of rope" 同义词：coil, volute, whorl, helix,
ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center 同义词：volute,
a continuously accelerating change in the economy
a plane curve traced by a point circling about the center but at increasing distances from the center
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle 同义词：helix,
例句与用法
1.
The spiral nebulae are impressive objects . 旋涡星云是迷人的天体。
2.
The falling leaf spiraled to the ground . 落叶盘旋着飘到了地上。
3.
The damaged plane spiraled towards the earth . 损毁的飞机旋转着跌向地面。
4.
Prices are still spiraling , i.e. increasing rapidly . 物价仍在急剧上涨。
5.
The motorcade spiralled up the mountain . 车队沿山路盘旋而上。
6.
The prevalent is the spiral . 常见的有盘旋形的。
7.
The smoke spiraled upwards . 那股烟袅袅上升。
8.
There is a curious feature in the spectra of spiral galaxies . 在旋涡星系的光谱中有一种奇妙的特征。
9.
Libraries have however remained locked in their growth spiral . 然而，图书馆仍然处在不断增长的阶梯上。
10.
The rotating cylinder with spiral grooves acts as a speed selector . 螺旋切口的旋转圆筒作为速率筛选器。
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