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【摘 要】
：
The difficulties in the reconstruction of Zhang Heng's Seismoscope come mainly from the lack of understanding of its mechanical principles. Such a discrepan
【机 构】
：
CenterforSeismicInformation
【出 处】
：
中国地震研究：英文版
【发表日期】
：
2004年2期
【基金项目】
：
地震科学联合基金
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