tachograph

美 ['tækə.ɡræf]

英 ['tækə.ɡrɑːf]

复数：tachographs

权威英汉双解

tachograph

n.

1.	（机动车的）测速计，自记式转速计a device that is used in vehicles such as large lorries/trucks and some types of buses to measure their speed, how far they have travelled and when the driver has stopped to rest

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