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Jyutpingwaan4 min6
Yalewàahn mihn
Definition
Torus; a surface of revolution generated by revolving a circle in three-dimensional space about an axis coplanar with the circle.
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How it's used
Mathematical terms like this are almost exclusively used in academic or technical contexts in Hong Kong. While the concept is simple, the formal term is rarely heard in casual conversation unless discussing geometry or topology. Most people would simply describe the shape by comparing it to a donut or an inner tube.
Measure word
go3個goExamples
This torus shape looks like a donut.
Do you know how to calculate the volume of a torus?
Related words
Grammar color guide
Noun
Verb
Adjective
Adverb
Pronoun
Classifier
Particle
Connector
Grammar guides
- NegationHow to say no, not, didn't, and don't in Cantonese. The four main negation words and when to use each one.
- Numbers and moneyCounting, talking about money, and asking how much things cost. Includes the two words for two and the everyday words for dollars and cents.
- Aspect markersCantonese has no tenses, but it does have aspect markers. Learn how zo2, gwo3, gan2, and hai2 dou6 show completion, experience, and ongoing action.



