spiral

英 [ˈspaɪrəl]

美 [ˈspaɪrəl]

n.  螺旋形; 螺旋式; 逐渐加速上升(或下降)
adj.  螺旋形的; 螺旋式的
v.  螺旋式上升(或下降); 盘旋上升(或下降); 急剧增长

复数：spirals　现在分词：spiralling　过去式：spiralled　第三人称单数：spirals　过去分词：spiralled　

CET6考研TOEFLIELTSTEM8

Collins.2 / BNC.8551 / COCA.8028

短语用例

spiral down/downward

• 急剧减少
  to decrease rapidly
  1. 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

noun

• 螺旋形；螺旋式
  a shape or design, consisting of a continuous curved line that winds around a central point, with each curve further away from the centre
  1. The birds circled in a slow spiral above the house.
     鸟儿在房子上空缓缓盘旋。
• 逐渐加速上升（或下降）
  a continuous harmful increase or decrease in sth, that gradually gets faster and faster
  1. the destructive spiral of violence in the inner cities
     市中心贫民区日益严重的暴力行为
  2. measures to control the inflationary spiral
     控制日益恶化的通货膨胀的措施
  3. the upward/downward spiral of sales
     日渐上升 / 下降的销售额

adj.

• 螺旋形的；螺旋式的
  moving in a continuous curve that winds around a central point
  1. A snail's shell is spiral in form.
     蜗牛壳呈螺旋形。

verb

• 螺旋式上升（或下降）；盘旋上升（或下降）
  to move in continuous circles, going upwards or downwards
  1. The plane spiralled down to the ground.
     飞机盘旋降落。
• 急剧增长
  to increase rapidly
  1. the spiralling cost of health care
     急剧上涨的医疗费用
  2. Prices are spiralling out of control.
     物价飞涨，失去控制。

柯林斯词典

in AM, use 美国英语用 spiraling, spiraled


• N-COUNT 螺旋(形)
  Aspiralis a shape which winds round and round, with each curve above or outside the previous one.
  1. Spiralis also an adjective.
     
  2. ...a spiral staircase.
     螺旋形楼梯
• V-ERG (使)盘旋着生长(或移动)
  If somethingspiralsoris spiralledsomewhere, it grows or moves in a spiral curve.
  1. Vines spiraled upward toward the roof...
     藤蔓盘旋着朝屋顶方向生长。
  2. ...a bullet spiralling out of a gun barrel...
     从枪管里飞旋而出的子弹
  3. A joss stick spiralled smoke.
     一柱线香青烟袅袅。
  4. Spiralis also a noun.
     
  5. Larks were rising in spirals from the ridge.
     云雀从山脊上盘旋着飞起。
• VERB (数量、水平)急遽增长
  If an amount or levelspirals, it rises quickly and at an increasing rate.
  1. Production costs began to spiral.
     生产成本开始急遽上升。
  2. ...a spiralling trend of violence...
     暴力急遽上升的态势
  3. The divorce rate is spiralling upwards.
     离婚率正急遽上升。
  4. Spiralis also a noun.
     
  5. ...an inflationary spiral.
     急遽加快的通货膨胀
  6. ...a spiral of debt.
     债务激增
• VERB (数量、水平)急遽变化
  If an amount or levelspiralsdownwards, it falls quickly and at an increasing rate.
  1. House prices will continue to spiral downwards.
     房价将继续暴跌。

英英释义

noun

• flying downward in a helical path with a large radius
• a structure consisting of something wound in a continuous series of loops
  1. a coil of rope
  Synonym:coilvolutewhorlhelix
• ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center
  Synonym: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
  Synonym:helix

verb

• to wind or move in a spiral course
  1. the muscles and nerves of his fine drawn body were coiling for action
  2. black smoke coiling up into the sky
  3. the young people gyrated on the dance floor
  Synonym:gyratecoil
• move in a spiral or zigzag course
  Synonym:corkscrew
• form a spiral
  1. The path spirals up the mountain

adj

• in the shape of a coil
  Synonym:coilinghelicalspiralingvolutevolutedwhorledturbinate

双语例句

• A contrast experiment for the spiral bevel gears was carried out on a rotor test facility with elastic supports.
  在转子系统模拟试验台上，对发动机主传动锥齿轮接触性能进行了实验研究。
• The spiral load brakes self-locked is good, can be in imperceptible locking and open, operate freely.
  这种螺旋载荷制动器自锁性好，能在不知不觉中锁定和开启，操作自如。
• House prices will continue to spiral downwards.
  房价将继续暴跌。
• Conclusion Multislice Spiral CT scans and MRP for diagnose pheochromocytomas have higher value.
  结论多层螺旋CT扫描及MRP对嗜铬细胞瘤的定性和定位诊断有较高价值。
• Thus the theoretical basis for the design of conical spiral magnetic suspension blood pump was provided.
  为锥形螺旋磁悬浮血泵的设计提供了理论依据。
• The process is not a circle but rather a spiral
  这个过程不是一个圆周运动而是螺旋上升型的。
• Barry Boehm introduced a Spiral methodology to address this problem.
  BarryBoehm引入了一个螺旋型方法来解决这个问题。
• The fatigue life of spiral bevel gear can not directly use to estimate the fatigue life of transmission assembly.
  不能直接用螺旋锥齿轮闭式试验台的疲劳试验结果估算变速箱总成中主动螺旋锥齿轮的疲劳强度和疲劳寿命。
• It triggered a death spiral.
  这引发了一个死亡螺旋。
• However, the events of the last year have turned this seemingly virtuous cycle into a vicious spiral.
  然而，去年发生的事件使这种表面上的良性循环变成了恶性循环。