updated sense approved 候风地动仪/候風地動儀 · hòufēngdìdòngyí · seismograph
候风地动仪 / 候風地動儀
hòufēngdìdòngyí
seismograph
the world's first seismograph, invented by Zhang Heng 張衡 in 132 AD→ the world's first seismograph, invented by [[张衡|張衡|Zhang1 Heng2]] in 132 AD候风地动仪是中国古代科学技术的一项伟大发明。
created sense approved 候风地动仪/候風地動儀 · hòufēngdìdòngyí · seismograph
候风地动仪 / 候風地動儀
hòufēngdìdòngyí
seismograph
the world's first seismograph, invented by Zhang Heng 張衡 in 132 AD
候风地动仪是中国古代科学技术的一项伟大发明。