| 词汇 | derailleur |
| 释义 | derailleur noun[ C ] engineering specializeduk /dɪˈreɪl.jer/ us /dɪˈreɪ.lɚ/ a type of bicycle gear that works by moving the bicycle chain from one sprocket wheel(= a wheel with a row of tooth-like parts) to another: （自行车的）换挡装置，变速器 Set the rear derailleur in the lowest gear, with the chain on the biggest sprocket wheel at 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。 derailleur gears换挡齿轮 Razvan/iStock/Getty Images Plus/GettyImages Bicycles backie backpedal balance bike bicycling bike path bike rack BMX chopper freight bike gear ratio handlebar keirin kickstand saddle skibob stabilizer tagalong tandem training wheels trishaw Examples of derailleurderailleur Its products ranged from suspension forks to derailleurs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Shifter controls are mounted so that the right shifter controls the rear derailleur and the left shifter controls the front derailleur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Meeting both these requirements is only possible if the rear derailleur is compatible with the gear range being used on the bike. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For example, a shaft-drive is usually accompanied by a hub gear, and derailleurs are usually implemented with chain drive. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Chains for small cogsets (e.g. seven-speeds) and other than derailleur-fitted bicycles are more tolerant of these master link dimensions. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is the main reason that a single-speed bicycle can be more efficient than a derailleur geared bicycle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A hub gear system provides greater ease-of-use and safety than a derailleur system, can provide a wide range of ratios, and requires little maintenance. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Unlike some traditional 10-speed gears using a derailleur, there is no slippage when changing gear ratios. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Though they are heavier than comparable derailleur systems, internal-gear hub systems generally last longer and require less maintenance. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The derailleur enters production, enabling gears to change without removing the wheel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The others had derailleur gears for a higher ratio for the sprint. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Hub gears by design are indexed, but for derailleur systems, indexing was an innovation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. His victory was controversial as he was the first rider to complete the race using a modern derailleur. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The rechargeable lithium-ion battery pack supplies power to the derailleur motors, which move the derailleurs via worm gears. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. 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. |
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