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单词 pendulum
释义
pendulum
noun
uk
/ˈpen.dʒəl.əm/us
/ˈpen.dʒəl.əm/
[C]
adeviceconsisting of aweighton astickorthreadthatmovesfrom onesideto the other,especiallyone thatformsapartof sometypesofclocks:
摆，摆锤；（尤指）钟摆
The pendulum in thegrandfatherclockswungback andforth.落地钟的钟摆来回摆动。
The spaceship'sjetswerefiredperiodicallytodampena side-to-side pendulummotionthat haddeveloped.宇宙飞船的喷射装置周期性地喷射，以减缓飞船出现的左右摇摆现象。
picture of pendulum
TATSUHIKO SAWADA/amana images/GettyImages
[S]
achange,especiallyfrom oneopinionto anoppositeone:
摇摆不定的事态（或局面）；（尤指）观点的摇摆不定
As so often ineducation,thependulum hasswungbackto the otherextremeandtestingispopularagain.人们的观点又回到了另一个极端，考试又流行起来了，这种摇摆不定的现象在教育领域经常出现。
SMART Vocabulary: related words and phrases
Watches & clocks
  • 24-hour clock
  • against the clockidiom
  • alarm
  • alarm clock
  • at/on the stroke ofsomethingidiom
  • atomic clock
  • clock
  • horologist
  • horology
  • hour hand
  • hourglass
  • jewel
  • military time
  • movement
  • stroke
  • timekeeper
  • timepiece
  • turn the clocks backphrase
  • twenty-four-hour clock
  • watchband
See more results »

You can also find related words, phrases, and synonyms in the topics:

Changing your mind
(Definition ofpendulumfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

pendulum| American Dictionary

pendulum
noun[C]
us
/ˈpen·dʒə·ləm/
adeviceconsisting of aweighthangingon arodorcordthatmovesfrom onesideto the other,esp. one thatformsapartof aclock
A pendulum is alsopowerorcontrolof anactivitythatchangesfrom onegroupto another:
In labor-managementrelations, the pendulum hasswungwildlyin thedirectionof theplayers.
(Definition ofpendulumfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofpendulum

pendulum
Despite some unavoidable differences between the theoretical and actual pendulums, the phenomena exhibited by them show good correspondence.
From theCambridge English Corpus
When the lengths are equal, the energy in each mode is equally partitioned between the two pendulums.
From theCambridge English Corpus
The work consists of six huge pendulums which are activated by the up and down movement of their hanging mounts.
From theCambridge English Corpus
Without knowing more about the particulars -for instance, about engineers'concepts of pendulums - one cannot dare to give a definitive answer in this case.
From theCambridge English Corpus
The other pendulums have different natural frequencies, so the driver has little effect.
From theCambridge English Corpus
Again, pendulums were fitted with colourful sails and set in motion by an oscillating fan which ran continuously.
From theCambridge English Corpus
Since the behaviour of the pendulums depends on the oscillating frequency of their mounts, a vari-speed electric motor is used.
From theCambridge English Corpus
The first affects our considerations insofar as we will calculate accumulated phase differences for pendulums of substantially different amplitudes.
From theCambridge English Corpus
Releasing the pendulums in opposite directions results in a counterswinging motion, while the system as a whole oscillates around the vertical axis (the cord).
From theCambridge English Corpus
Our legs swing like pendulums, with adjustments so that we don't trip.
From theCambridge English Corpus
Without knowing more about the particulars - for instance, about engineers'concepts of pendulums - one cannot dare to give a definitive answer in this case.
From theCambridge English Corpus
All the pendulums are coupled together by the suspension.
From theCambridge English Corpus
As the driver swings, it moves the suspension, which in turn moves the other pendulums.
From theCambridge English Corpus
Here 0 is the damping, 0 is the characteristic frequency of thependulum!
From theCambridge English Corpus
Figure 4 shows that it takes approximately 8 seconds for the pendulum's angle to become steady, and even longer for the cart's position to stabilize.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/pendulum##
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更新时间：2024/12/28 1:33:43