| 正 |
zhèng xián bō | sine wave / simple harmonic vibration |
| 正 |
zhēng | first month of the lunar year |
| 正 |
zhèng | straight / upright / proper / main / principal / to correct / to rectify / exactly / just (at that time) / right (in that place) / (math.) positive |
| 正 |
zhèng xián | (math.) sine |
| 弦 |
xián | bow string / string of musical instrument / watchspring / chord (segment of curve) / hypotenuse / CL:根 |
| 波 |
Bō | (bound form) Poland (abbr. for 波兰) / surname Bo |
| 波 |
bō | wave / ripple / storm / surge |