taper

• n. 细蜡烛，烛芯；逐渐变弱；锥形物
• vi. 逐渐减少；逐渐变弱
• vt. 逐渐减少；使成锥形

来自古英语 taper,灯芯，蜡烛，异化自拉丁语 papyrus,纸莎草，词源同 paper.因过去用纸莎草 芯做灯芯而引申该词义，后进一步引申词义锥形物，逐渐变细等。

1. a convex shape that narrows toward a point

2. the property possessed by a shape that narrows toward a point (as a wedge or cone)

3. a loosely woven cord (in a candle or oil lamp) that draws fuel by capillary action up into the flame

4. stick of wax with a wick in the middle

taper

taper: [OE] Taper is ultimately the same word as paper. Both go bach to Latin papyrus ‘papyrus’. This was used among other things for a ‘candlewick made from papyrus’, and hence for a ‘candle’. It seems to have been borrowed in this sense into Old English as *papur, and by a process known as dissimilation (in which one of a pair of similar speech sounds is changed, so as to break up the pair) it became tapur. The verb taper ‘become narrower’, which emerged in the 16th century, is an allusion to the shape of the candle.
=> paper, papyrus

taper (n.)

Old English tapur, taper "candle, lamp-wick," not found outside English, possibly a dissimilated borrowing from Latin papyrus (see papyrus), which was used in Medieval Latin and some Romance languages for "wick of a candle" (such as Italian papijo "wick"), because these often were made from the pith of papyrus. Compare also German kerze "candle," from Old High German charza, from Latin charta, from Greek khartes "papyrus, roll made from papyrus, wick made from pith of papyrus."

taper (v.)

1580s, "shoot up like a flame or spire," via an obsolete adjective taper, from taper (n.), on the notion of the converging form of the flame of a candle. Sense of "become slender, gradually grow less in size, force, etc." first recorded c. 1600. Transitive sense from 1670s. Related: Tapered; tapering.

The tail tapered to a rounded tip.

尾部越来越细，最后成了个圆尖。

牛津词典

The pots are wide at the base and tapered at the top.

这些壶底部粗，顶部细。

牛津词典

The number of applicants for teaching posts has tapered off.

申请做教学工作的人数越来越少。

牛津词典

They are gradually tapering off production of the older models.

他们在逐步减少生产旧型号的产品。

牛津词典

Unlike other trees, it doesn't taper very much. It stays fat all the way up...

和别的树不同，它不是越往上越细，而是上下一样粗。

柯林斯高阶英语词典

...beautiful hands with long, tapering fingers...

手指修长纤细的一双美手

柯林斯高阶英语词典

There are signs that inflation is tapering...

种种迹象显示，通货膨胀率在逐渐下降。

柯林斯高阶英语词典

If you take these drugs continuously, withdrawal must be tapered.

如果你一直在服用这些药，停药时一定要逐渐停。

柯林斯高阶英语词典

These increases taper off after a time , though, unless they enter management.

在一段时间之后, 除非他们能进入管理层,否则这种增长就会慢慢减少.

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Shirley leaned forwards on the table, her taper fingers interlaced and compressing each other hard.

谢利欠身向前,靠着桌子, 尖细的手指交叉在一起,彼此钩得紧紧的.

辞典例句

If wear, taper, or eccentricity is not too great, only honing will be required.

如果磨损造成锥度或偏心度不是很严重, 仅需要进行衍磨即可解决问题.

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B 、 What shape is the flank of a taper?

圆锥的底面是()形,圆锥有()个底面.

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Pulmonary arteries taper towards periphery.

肺动脉向周围逐渐变细.

辞典例句

Their concern: Government borrowing continues to climb while demand for the nation's debt could taper off.

他们关注的是: 虽然国债发售持续攀升,但对国家债务的需求可能会减少.

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Other taper degree, bit diameter and flushing hole are available upon request by Customers.

尾孔锥度 、 大径及水孔可以根据用户具体情况制定.

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The ellipse cone grinding and taper grinding is compared.

并且对椭圆锥面刃磨与圆锥面刃磨进行了比较.

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Due to the taper end piece , the muffler isn't able to fit over header enough.

由于结合处呈锥形, 所以消音器不能够完全的将头部覆盖.

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NSN Bearinggroove ball bearings and taper roller bearings and quickens its steps in development recent years.

以生产中小型轴承起家的通用公司在近年来更加坚定了发展步伐.

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At last, the technology of rolling two taper rings in one process was developed successfully.

经过反复试验验证, 有效控制了拉凹和宽展,试验取得了成功,成功开发出了锥形套圈的冷辗扩工艺.

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We should taper off the amount of time given to work.

我们应该逐渐减少工作时数.

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It is to make the engine flywheel hole taper as clutch active.

它是将发动机飞轮的内孔做成锥体作为离合器的主动件.

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Other taper degree and bit diameter are available upon request by Customers.

尾孔锥度及大径可以根据用户具体情况制定.

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How many heights has a taper?

圆锥有多少条高?

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To form , shape, taper, or enlarge ( a hole ) with or as if with a reamer.

扩, 整用扩孔钻或仿佛是用扩张钻去造出 、 成形出 、 整出或扩大 ( 某个孔 )

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Big fireworks at arm's length using a taper, never a naked flame.

燃放烟花时,伸长手用香去点引线, 千万不要用明火.

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Taper type hanger and straight type hanger are available for tubing head.

油管挂的密封形式有非金属密封(图一)金属密封(图二)种形式.

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These taper off after a time, though, unless they enter management.

但是这样的高增长在一段时间后将放缓, 除非他们进入管理层.

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This feature allows both for taper bending and easy adjustment of angle differences.

这一特征允许锥度弯曲和轻松调整角差.

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