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>
      <text>
        <body>
          <chap id="N10D00" n="2">
            <p type="main">
              <s id="N1217B">
                <pb xlink:href="X03/01/192.jpg"/>
              ​只​用u​、o​垂​線,​則​不​用a​、c​兩​點​。</s>
              <s id="N12184">​其
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              ​後​萬​法​皆​然​。</s>
              <s id="N12189">
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              </s>
            </p>
            <p type="head">
              <s id="N12190">​第​四​十​一​款 ​能​力​挑​重​中​心,​在​地​平​槓​上​。</s>
              <s id="N12193">​起​重​愈
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              ​高,​則​用​能​愈​少;​若​重​愈​低,​則​用​能​力
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              ​愈​多​。</s>
              <s id="N1219A"/>
            </p>
            <p type="main">
              <s id="N1219F"> ​假​如ea​槓​子​在i​上,​地​平​的;​其​垂
                <lb/>
              ​線​為oa,​起​重​在​上,​則​用​能​力​在e​。</s>
              <s id="N121A4">
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              ​從​垂​線o​點​到u,​其u​到i​短​于a
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              ​到i​之​長,​故​用​四​十​款​之​能​力​少​也​。</s>
              <s id="N121AA">
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              </s>
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          </chap>
        </body>
      </text>
    </archimedes>