spiral

noun

1. 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。
2. 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.

1. 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

1. 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。
2. 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。

in AM, use 美国英语用 spiraling, spiraled


1. N-COUNT 螺旋(形)
   A spiral is a shape which winds round and round, with each curve above or outside the previous one.
   1. Spiral is also an adjective.
      
   2. ...a spiral staircase.
      螺旋形楼梯
2. V-ERG (使)盘旋着生长(或移动)
   If something spirals or is spiralled somewhere, 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. Spiral is also a noun.
      
   5. Larks were rising in spirals from the ridge.
      云雀从山脊上盘旋着飞起。
3. VERB (数量、水平)急遽增长
   If an amount or level spirals, 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. Spiral is 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
4. VERB (数量、水平)急遽变化
   If an amount or level spirals downwards, it falls quickly and at an increasing rate.
   1. House prices will continue to spiral downwards.
      房价将继续暴跌。

1. The spiral of terrorism becomes never-ending.
   恐怖主义活动没完没了，不断升级。
2. 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。
3. A joss stick spiralled smoke.
   一柱线香青烟袅袅。
4. Production costs began to spiral.
   生产成本开始急遽上升。
5. The divorce rate is spiralling upwards.
   离婚率正急遽上升。
6. House prices will continue to spiral downwards.
   房价将继续暴跌。
7. The quenching distortion of rear axle spiral bevel gear used in FLAT tractor is studied in this paper.
   研究了菲亚特拖拉机后桥大圆锥螺旋齿轮淬火变形规律，分析了原淬火压模存在的问题。
8. The generating motion of the generating gear and the work gear on spiral bevel gear NC machining is analyzed.
   分析了弧齿锥齿轮数控加工中产形轮和工件齿轮之间的展成运动，建立了弧齿锥齿轮齿面的数学模型。
9. I am seeking for a spiral outside antenna for interphone.
   我要找一个对讲机的外接天线，并且要螺旋式的。
10. So development of new weapons would be frozen, ending the vicious spiral of nuclear move and countermove.
    这样也就冻结了新武器的研制，终结了核行为与反核行为这种恶性循环。
11. It can become kind of an upward spiral.
    这样就成了一种螺旋上升的形式。
12. Objective: To investigate the technique and clinical value of spiral CT virtual endoscopy of middle ear.
    目的：研究螺旋CT中耳仿真内镜的检查方法以及临床应用价值。
13. The electron's high probability zone formed spiral standing waves around the carbon atom's nucleus.
    电子的高概率区域形成了碳原子核周围螺旋驻波。
14. The gliding spiral of a gull's flight.
    鸥飞行中的盘旋滑翔。
15. It triggered a death spiral.
    这引发了一个死亡螺旋。
16. 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。
17. Results In all patients, the scanning of spiral CT and reconstruction showed the bone fracture.
    结果所有病例经螺旋CT扫描及重建均能显示骨折。
18. 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。
19. Certainly it will be very useful to improve spiral bevel and hypoid gears industry in our country.
    这对提高我国弧齿锥齿轮和准双曲面齿轮润滑设计与应用水平有重要价值。
20. 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。
21. 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。
22. Conclusion spiral CT can identify Bleeding and necrotizing pancreatitis early and also can regard as a significant follow-up method.
    结论螺旋CT检查能及早发现出血坏死性胰腺炎的病理变化，并可作为随访该病病情转归的重要方法。
23. 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。
24. 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。
25. The parametric modeling method for loxodrome normal circular-arc spiral bevel gear was presented.
    给出了斜航式法向圆弧螺旋锥齿轮的参数化建模方法。
26. 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。
27. The orange stripes go through the "green" spiral but not the "blue" one.
    橙色的条纹穿过了“绿色”的条纹，但没有穿过“蓝色”的。
28. In this spiral spring time, each person's behind all as if excellent disciple spiral spring.
    在这个发条的时代，每个人的背后都似乎上足了发条。
29. A downward spiral had began.
    向下螺旋坠落便开始了。
30. The spiral horn of sheave and rotation speed had influence on sowing performance.
    说明了槽轮的螺旋角度和转速对排种性能的影响。

spiral down/downward

1. 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。

noun

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

2. a structure consisting of something wound in a continuous series of loops
   1. a coil of rope

   Synonym:    coilvolutewhorlhelix

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

   Synonym:    volute

4. a continuously accelerating change in the economy

5. a plane curve traced by a point circling about the center but at increasing distances from the center

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

   Synonym:    helix

verb

1. 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

2. move in a spiral or zigzag course

   Synonym:    corkscrew

3. form a spiral
   1. The path spirals up the mountain

adj

1. in the shape of a coil

   Synonym:    coilinghelicalspiralingvolutevolutedwhorledturbinate