Word data
HSK
Not in HSK
FREQUENCY
Unknown
候風地動儀 hòu fēng dì dòng yí
ancient Chinese seismograph by Zhang Heng
Word data
| HSK | Not in HSK |
| Frequency | Unknown |
Definitions
- 1. the world's first seismograph invented by Zhang Heng 张衡zhāng héng in 132