水运浑天仪
水运浑天仪-
他一生做出了许多设计与发明，如水运浑天仪、候风地动仪、指南车、记里鼓车等，并在国际上拥有广泛地影响力。
He did a number of inventions and designs all his lifetime , such as Armillary , Seismoscope , Southward Pointing Chariot , Li-drum-hodometer and so on , which have wide influence on the international arena .
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汉中期，杰出的天文学家张衡对浑仪作了大胆创新，设计并制作了漏水转浑天仪。张衡还制造出了世界上第一架测量天体位置的水运浑天仪，凡是已知的重要天文现象，都刻在这架仪器上。
In the middle of the Eastern Han Dynasty , Zhang Heng ， an outstanding astronomer , made bold innovations to the armillary sphere ， and de-signed and made the first water-driven armillary sphere in the world to measure the position of celestial bodies ， which was carved with known important astronomical phenomena .