coil

• 指通过将某物缠绕成一连串连续的环而形成的结构或物体，例如螺旋形状、变压器的绕组、宫内节育器或卷成螺旋状的管段。

A noun referring to a structure or object formed by winding something in a continuous series of loops, such as a spiral shape, a transformer component, a contraceptive device, or a length of tubing wound in a spiral.

1. Spiral or looped structureB1formal

   A structure made by winding something in a continuous series of loops.

   螺旋或环状结构

   • The rope was wound into a tight coil.
   • She carefully arranged the wire in a coil.
   • A coil of smoke rose from the chimney.

   同义词convolutioncurlloopringspiraltwistvolutewhorl

2. Concentric circular shapeB1formal

   A round shape formed by a series of concentric circles, similar to a spiral.

   螺旋

   • The fern frond unfurled in a perfect coil.
   • The snake lay in a coil on the warm rock.
   • The artist painted a coil of leaves and petals.

   同义词convolutioncurlloopringspiralwhorl

3. Ignition coilB2formaltechnical

   A transformer in a gasoline engine that supplies high voltage to the spark plugs.

   点火线圈

   • The mechanic replaced the faulty ignition coil.
   • A bad coil can cause the engine to misfire.
   • The car's coil needs to be checked regularly.

   同义词ignition coilspark coil

4. Intrauterine device (IUD)B2formalmedical

   A small, T-shaped contraceptive device placed inside a woman's womb to prevent pregnancy.

   宫内节育器（IUD）

   • She decided to get a coil fitted for long-term contraception.
   • The doctor explained the benefits of using a coil.
   • The coil is a highly effective form of birth control.

   同义词loop

5. Spiral tubingB2formaltechnical

   A length of tubing that is wound in a spiral shape, often used for cooling or heating.

   盘管

   • The refrigerator uses a coil of copper tubing.
   • The heating system includes a coil that transfers heat.
   • The coil in the air conditioner needs to be cleaned.

   同义词loopspiralwinding

6. Inductor coilC1formaltechnical

   A reactor consisting of a spiral of insulated wire that introduces inductance into an electrical circuit.

   电感线圈

   • The circuit includes a coil to filter out high-frequency noise.
   • The engineer designed a coil with a specific inductance value.
   • The radio uses a coil to tune into different frequencies.

   同义词chokeinductorreactorsolenoid

• 动词，指把某物缠绕、卷成一系列圈或螺旋形，也指将线、绳等绕成团或环。

A verb used to describe the action of winding or twisting something into a series of loops or a spiral shape.

1. Wind in a spiralB1formal

   To wind or move in a spiral or circular course.

   盘绕

   • The snake coiled around the branch.
   • Smoke coiled upward from the chimney.
   • The road coiled through the mountains.

   同义词curlentwineloopspiraltwinetwistwind

   反义词straightenuncoilunwind

2. Make without a potter's wheelB2formal

   To shape clay into a pot or vessel by building up coils of clay, without using a potter's wheel.

   泥条盘筑法

   • She learned to coil clay pots by hand.
   • The artisan coiled the clay to form a vase.
   • Ancient cultures often coiled their pottery.

3. Wind around somethingB1formal

   To wind something around an object in loops or coils.

   缠绕

   • He coiled the rope around the post.
   • She coiled the wire neatly for storage.
   • The hose was coiled around the garden faucet.

   同义词curlentwineloopspiraltwinetwistwindwrap

   反义词straightenuncoilunwind