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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          <chap id="N10015" n="1">
            <pb xlink:href="X03/01/114.jpg"/>
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            <p type="head">
              <s id="N112F1"> ​第​十​六​款 ​有​法​四​邊​形,​其​重​心​分​兩​平​分​為​徑​。</s>
              <s id="N112F4"/>
            </p>
            <p type="main">
              <s id="N112F9"> ​假​如​上​圖,​四​邊​有​法​長​方​形,​其​重​心
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              ​是a,​其​徑e i ​為​一​線​。</s>
              <s id="N112FE">ou​、c ch​各
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              ​一​線,​各​線​每​徑​長​短​不​同,​俱​兩​平​分​。</s>
              <s id="N11303">
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              </s>
            </p>
            <p type="head">
              <s id="N1130A"> ​第​十​七​款 ​有​法​多​邊​形,​其​重​心​形​心​同​所​。</s>
              <s id="N1130D"/>
            </p>
            <p type="main">
              <s id="N11312"> ​假​如​上​六​角​形,​其​角​等,​其​邊​亦​等,​是
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              ​名​有​法​多​邊​。</s>
              <s id="N11317">​其​重​心​與​形​心​摠​是​一
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              ​心​。</s>
              <s id="N1131C"/>
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          </chap>
        </body>
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    </archimedes>