gei2 ho4 gwong1 hok6幾何光學几何光学
Jyutpinggei2 ho4 gwong1 hok6
Yalegéi hòh gwōng hokh
Definition
geometric optics
Tone guide
T1High level
T2High rising
T3Mid level
T4Low falling
T5Low rising
T6Low level
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