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单词 derailleur
释义
derailleur
noun[C]
engineeringspecialized
uk
/dɪˈreɪl.jer/us
/dɪˈreɪ.lɚ/
atypeofbicyclegearthatworksbymovingthebicyclechainfrom onesprocketwheel(= awheelwith arowof tooth-likeparts)to another:
（自行车的）换挡装置，变速器
Set therearderailleur in thelowestgear, with thechainon thebiggestsprocketwheelat the back.把后轮的变速器调到最低挡，就是让链条在后面连到最大的链齿上。
derailleurgears换挡齿轮
picture of derailleur
Razvan/iStock/Getty Images Plus/GettyImages
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(Definition ofderailleurfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofderailleur

derailleur
Its products ranged from suspension forks to derailleurs.
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Shifter controls are mounted so that the right shifter controls the rearderailleurand the left shifter controls the frontderailleur.
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Meeting both these requirements is only possible if the rearderailleuris compatible with the gear range being used on the bike.
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For example, a shaft-drive is usually accompanied by a hub gear, and derailleurs are usually implemented with chain drive.
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These bicycles are withoutderailleurgears, hub gearing or other methods for varying the gear ratio of the bicycle.
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Chains for small cogsets (e.g. seven-speeds) and other thanderailleur-fitted bicycles are more tolerant of these master link dimensions.
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This is the main reason that a single-speed bicycle can be more efficient than aderailleurgeared bicycle.
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A hub gear system provides greater ease-of-use and safety than aderailleursystem, can provide a wide range of ratios, and requires little maintenance.
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Unlike some traditional 10-speed gears using aderailleur, there is no slippage when changing gear ratios.
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Though they are heavier than comparablederailleursystems, internal-gear hub systems generally last longer and require less maintenance.
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Thederailleurenters production, enabling gears to change without removing the wheel.
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The others hadderailleurgears for a higher ratio for the sprint.
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Hub gears by design are indexed, but forderailleursystems, indexing was an innovation.
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His victory was controversial as he was the first rider to complete the race using a modernderailleur.
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The rechargeable lithium-ion battery pack supplies power to thederailleurmotors, which move the derailleurs via worm gears.
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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/derailleur##
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更新时间：2024/12/28 1:58:32