地动仪 (地動儀) dì dòng yí
dì dòng yí
phrase
seismograph
Domain: Modern Chinese 现代汉语
Notes: The world's first seismograph invented by Zhang Heng 张衡 in 132; abbreviation for 候风地动仪 (CC-CEDICT '地動儀'; Guoyu '地動儀'; Wikipedia '候風地動儀')