滚刀 gun3 dao1

(engineering) gear hob (cutting tool used in manufacturing gears)

Traditional: 滾刀

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gun3

dao1

📖 Additional Information

English Phonetic: .endʒi'niәriŋ
Detailed Definition: n. the discipline dealing with the art or science of applying scientific knowledge to practical problems\nn. a room (as on a ship) in which the engine is located