epicyclic train

Từ điển Oxford Learners Wordfinder Dictionary

noun

a system of epicyclic gears in which at least one wheel axis itself revolves about another fixed axis
• Syn:
epicyclic gear train
• Hypernyms:
gearing, gear, geartrain, power train, train
• Part Meronyms:
planetary gear, epicyclic gear, planet wheel, planet gear, sun gear