1A length of something wound or arranged in a spiral or sequence of rings.

一卷绳子。

1. 1.1 A single ring or loop in a length of coil.
   （一卷绳或一卷线等的）一圈
   the snake wrapped its coils around her

   蛇把她一圈一圈地盘绕起来。

   Example sentencesExamples

   • Seti's black eyes lit up, and several tentacles were instantly flung around Indigo's torso and chest, constricting like snake coils.
   • Then, I saw the smoke of the incense rise in a spiral, just like the coils of a snake, you know.
   • The two sisters both rested their hands on the coils of the great snake and stroked it gently as others would stroke a sleeping cat.
   • Scurry washed and blow-dried the model's natural hair, then wrapped individual pieces around a small-barrel curling iron to set coils.
   • It tightens the coils by contracting the individual muscles between its ribs and so prevents the prey from moving.
   • Merely uncoil the roll of mesh so there are 3 feet or so between each coil.
   • She then wrapped pieces around medium- and small-barrel curling irons to set coils.
   • Successful right bronchial artery embolization was performed with coils.
   • I nipped one coil off the trigger return spring.
   • One end of the clay cord was formed into a loop and fastened with a smaller coil of clay wrapped around it.
   • Wolfus struggled to reach for his sword, and slashed off the coils with a single swipe.
   • In its place, the diesel unwreathed coils of black smoke over a typical, hard-worked Kerala landscape of coconuts and rice paddies broken occasionally by broad sluggish rivers and clattering bridges.
   • They can be corrected by surgery or by radiologic placement of coils in the dilated veins.
   • In one variant of the receiver, the coils are collinear and are wound about cores that are mounted in pairs of diametrically opposed apertures in the housing of the probe.
   • Her bleached blonde hair is dragged up into neat golden coils of plaiting, like a sleeping snake on her head.
   • He watched as the coil rose above their heads, and then he tried to pry the snake away as it began to tighten its coils around them.
   • After death, tangled loops and coils of a fibre-like material of beta-amyloid protein, can be observed in brain tissue.
   • Mike gripped the snake's coils and began to peel it from around the woman's arm.

   Synonyms

   loop, twist, turn, curl, hoop, roll, ring, twirl, gyre, whorl, scroll, curlicue, convolution
2. 1.2often the coil An intrauterine contraceptive device in the form of a coil.
   宫内节育环
   Example sentencesExamples

   • The scenario of men and women choosing from a pick 'n' mix of pills, patches, injections, condoms and coils, catering for various lifestyles and needs, is not just a fantasy.
   • The packs will include two condoms, a coil, lip balm, hand warmers, information on safe sex and emergency phone numbers.
   • Intrauterine devices, also known as coils, are rigid contraceptive devices that are inserted into the uterus by a doctor.
   • Some people object to the contraindications of the coil.
   • On the same day a woman with the same name was due to have her contraceptive coil removed.
   • Like other coils, the Mirena coil is also a contraceptive.
   • The IUD is a small, plastic and copper device that used to be known as the coil.
   • If pregnancy does occur while using a coil, there is a small risk of an ectopic pregnancy.
   • Mirena is the brand name of a new type of intra-uterine contraceptive device, or coil.
   • It's the sort of consignment Jan takes with her whenever she visits Romania, along with contraceptive coils and coffee.
   • It is best not to use the coil for contraception after PID has been diagnosed.
   • The contraceptive coil seems to increase the risk of BV.
   • If you have a contraceptive coil fitted, you must tell the radiographer as some have copper wire in them.
   • The generally accepted medical practice in the use of the coil as a post-coital contraceptive device is that it may properly be introduced at any time up to the 20th day.
   • It would also open the door to other claims against the mini-pill and intra-uterine devices such as the coil, which would make a similar mockery of the law outlined in the Abortion Act and of basic common sense.
   • Many contraceptives, such as the coil or the morning after pill, are abortive tools.
   • She had been protected from pregnancy through an intrauterine coil, which had been inserted under general anaesthetic but which was due to be replaced.
   • Also, there is no significant delay in return to fertility after stopping the pill or having a coil removed.
   • Difficulties associated with older generation coils, such as heavy and sometimes painful periods, promise to be overcome.
   • I was angry because, using a coil, I had made every effort to prevent a pregnancy.
3. 1.3 An electrical device consisting of a length of wire arranged in a coil for converting the level of a voltage, producing a magnetic field, or adding inductance to a circuit.
   （变换电压、产生磁场或增强线路电感）线圈
   a relay coil

   继电器线圈。

   Example sentencesExamples

   • He had learned that an inductance coil was a closed circuit with no current of its own.
   • Should the deformation lead to the decrease in the coil's inductance, the energy of the magnetic field will increase.
   • This voltage in the feedback coil conducts current to the transistor base, making the transistor conductive again, and the process repeats.
   • These currents are induced by the rapidly changing magnetic field generated by a coil supplied with an alternating current.
   • It relied on the principle of electromagnetic induction, and consisted of an insulated coil of copper wire connected to a large electrical capacitance.
   • The pickup's magnetic field is disturbed when iron or steel moves through it; this disturbance generates A / C voltage in the coil.
   • The three-channel CPU voltage regulator uses original inductance coils in a casing and capacitors from OST and Nippon Chemi-Con.
   • Solenoids also supply voltage to the glow coil and are part of the electrical loop.
   • Electricity is produced when coils of wire inside the generator create a pulse as they move through a magnetic field, Sagrillo said.
   • Short bursts of electrical current are send through a coil of wire, causing a magnetic field.
   • Changing levels of current in the wires of an electric coil wrapped around a magnetic generate fluctuations in the magnetic field.
   • This gear rotates coils of wire within a magnetic field inside the generator, creating electricity.
   • The sample magnetization can be measured through the induction of a voltage signal in a coil surrounding the sample after its manipulation by an appropriate combination of radio-frequency pulses.
   • Around the magnet is an electrical coil attached to the floating buoy.
   • In particular the area where the power supply components are located looks different: the number and location of capacitors, coils and the transistors around the CPU socket has been changed.
   • A high-density coil transforms the magnetic charge generated by the rotor into electrical energy that powers the watch.
   • It works by moving a magnet through a coil of wire and produces a alternating current which must then be rectified by the use of diodes.
   • A second capacitor coil is inductively coupled to the control inductor, and is to be connected to the capacitor to provide a second resonant sub-circuit to control resonant gain.
   • If you vary the size of the two inductors - the number of loops in each coil - you can boost voltage from the primary to the secondary.
   • Thus, the induced voltage in the coil generated by any outer magnetic field is controlled to reduce noise.
4. 1.4 An electrical coil used for transmitting high voltage to the spark plugs of an internal combustion engine.
   （将高压电传输到内燃机火花塞上的）线圈
   Example sentencesExamples

   • Some vehicle manufacturers recommend replacing the coil whenever replacing ignition wires, to avoid the higher resistance in new wires from damaging the ignition module.
   • In the article it said the engine has eight coils and dual plugs.
   • Dirty filters, coils, and fans reduce airflow through the system.
   • When Tri-Tech won a contract to manufacture encapsulated coils for valves on buses powered by natural gas, it knew the components would require superior protection against the elements.
   • Motor control of a variable reluctance motor is obtained by providing a periodic voltage waveform to a coil of a motor.
   • After a quick and jovial discussion about the problem he checked the spark plugs and coil.
5. 1.5 A slow-burning spiral made with the dried paste of pyrethrum powder, which produces a smoke that inhibits mosquitoes from biting.
   蚊香
   Example sentencesExamples

   • The first thing I had to do was photograph the interior of my bungalow before the air got hazy with the smoke from the smouldering mosquito-repellent coils.
   • ‘For villagers who can not afford to purchase a mosquito net or coils, Jatrohpa is the answer to their cry,’ said Munengu.
   • The use of mosquito repellents, especially coils, mats and liquids, apparently will have harmful effects on the health.
   • The cup-shaped vessel specially made to keep the lighted mosquito repellent coil, candle stand and small teacups are among the attractions.
   • With a lit coil around, the mosquitoes begin coughing and either stay away or soon die.
6. 1.6 A roll of postage stamps, especially one for use in a vending machine.
   （尤指自动售货机中的）成卷邮票
   Example sentencesExamples

   • They were also issued with coils containing labels instead of the postage stamps.

1Arrange or wind (something long and flexible) in a joined sequence of concentric circles or rings.

他开始把那些粗重的绳子卷起来。

他把她的一绺头发绕在手指上。

1. 1.1no object, with adverbial Move or twist into a coil.
   smoke coiled lazily toward the ceiling

   烟雾袅袅地升向天花板。

   Example sentencesExamples

   • Smoke like incense coiled from the corner of the room from the dried bunches of herbs he had found in Mary's cold store.
   • Storage of DNA is related to its ability to twist and coil into a compact form.
   • Their sloping slate roofs peeked over Victorian chimneys almost smothered in the plumes of grey smoke which coiled ever upwards into the sky.
   • There was also this big rat snake in the barn - I couldn't smell it, but a lot of times I'd be working in the loft, all of a sudden I'd discover that big king snake, coiling up, getting ready to strike.
   • The glands are initially straight but begin to coil toward the end of this phase.
   • Start your visit with a morning cruise up the graded gravel of Spiral Drive, which coils around Tenderfoot Mountain all the way to its 7,560-foot summit.
   • It laughs at such restraints as paving; new plants coil like a spring until they break the mortar between the bricks.
   • Swaisgood's research project required that the snake comfortably slither, coil, and strike but still be tethered tightly enough that there was no chance it could escape.
   • Lia continued to twist the fork, watching as the spaghetti coiled then dropped back into the plate.
   • They light the joss sticks from the yellow candles' strong steady flames and place the incense in the sand, the thin white smoke coiling up to the heavens.
   • Then black smoke and heat coiled around him in a thick, suffocating cloud until he choked and woke to the world.
   • Leave the stem on until it has coiled (this will be towards the end of the growing time), then cut it back close to the base of the plant.
   • I had never seen the rancher, who lived in the thrown-together compound of unmatched buildings down by the river, only a thin wraith of smoke coiling out of his chimney.
   • Fear was coiling in her stomach and her chest twisted in agony.
   • With each passing second his insides twisted and coiled like a snake.
   • He leaned back in his leatherback chair, and puffed out his Cuban cigar, sending the smoke coiling up to the ceiling.
   • The flower stalks do coil suggestively like serpents.
   • Inside the implant a bundle of wires has been inserted: each wire is a different length, so that as the bundle coils around the spiral in the cochlear's bony shell separate electrodes reach a certain distance only.
   • On the prow of the Kebako Puka a snake coils around a mountain, symbolizing the tidal wave that destroyed the Lamalerans' ancestral home.

A confusion or turmoil.