Terentius, Johannes; Zheng, Wang 王徴, Yuan xi qi qi tu shuo lu zui 遠西奇器圖說錄最, [1830]

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    <archimedes>
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          <chap id="N10D00" n="2">
            <p type="main">
              <s id="N120F0">
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              ​于​支​磯，​用​力​愈​可​少，​故​挑​槓​常​常​省
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              ​力​。</s>
              <s id="N120FB">
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              </s>
            </p>
            <p type="head">
              <s id="N12102">​第​三​十​八​款 ​有​挑​槓​之​分​十​尺，​其​本​體​重​四​百​斤，
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              ​上​另​有​千​斤​之​重，​得​槓​之​重​徑​、​重​之
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              ​中​徑，​求​挑​力​。</s>
              <s id="N12109"/>
            </p>
            <p type="main">
              <s id="N1210E"> ​法​曰：o u​與o i​比​例​要​等​四​百​與
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              ​一​千​比​例​。</s>
              <s id="N12113">​假​如e o​為​二​尺，​就​用​比
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              ​例，​十​尺​與​二​尺​比​例，​為​一​千​四​百​斤​。</s>
              <s id="N12118">
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              ​兩​重​之​于​二​百​八​十​斤​比​例​。</s>
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            </p>
          </chap>
        </body>
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