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="N121AA">
                <pb xlink:href="X03/01/193.jpg"/>
              ​若​重​在​地​平​之​下,​則​從​垂​線​為o​到
                <lb/>
              f,[f]i​與ai​長,​所​用​前​款,​力​在​于g,
                <lb/>
              ​故​力​多​。</s>
              <s id="N121B6">
                <lb/>
              </s>
            </p>
            <p type="head">
              <s id="N121BD">​第​四​十​二​款 ​揭​槓​在​平,​重​心​在​上​。</s>
              <s id="N121C0">​重​心​起​愈​高,​能
                <lb/>
              ​力​愈​少​。</s>
              <s id="N121C5"/>
            </p>
            <p type="main">
              <s id="N121CA"> ​如​上​圖​。</s>
              <s id="N121CD">​重​心​起​高,​垂​線​到a​。</s>
              <s id="N121D0">​視​下​平
                <lb/>
              ​重,​去​支​磯​愈​近,​故​用​力​愈​少​也​。</s>
              <s id="N121D5"/>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>