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    <div class="moz-cite-prefix">The common use of the word 'fluid' only
      includes liquids. <br>
    </div>
    <div class="moz-cite-prefix">Not everyone is a scientist. Even worse
      is the job of interpreting this into other languages. <br>
    </div>
    <div class="moz-cite-prefix">So, yes .. avoid the use of the word
      'fluids'. <br>
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    <div class="moz-cite-prefix"><br>
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    <div class="moz-cite-prefix"><br>
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    <div class="moz-cite-prefix">On 18/3/21 3:31 am, Volker Schmidt
      wrote:<br>
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    <blockquote type="cite"
cite="mid:CALQ-OR4mhjNr_x11nE82HxvYk_A8b4CY2tFRv5a3sf0zCY5nGQ@mail.gmail.com">
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        <div>Hi François, <br>
        </div>
        <div>the fact that I slipped up on this, as a physicist by
          education, illustrated that we may need to write explicitly
          "liquids and gasses". That way we also  exclude, correctly, kthe
          third type of fluids, which are plasmas, if my memory is
          correct.</div>
        <div><br>
        </div>
        <div>Volker<br>
        </div>
        <div>k</div>
        <br>
        <div class="gmail_quote">
          <div dir="ltr" class="gmail_attr">On Wed, 17 Mar 2021 at
            17:15, François Lacombe <<a
              href="mailto:fl.infosreseaux@gmail.com"
              moz-do-not-send="true">fl.infosreseaux@gmail.com</a>>
            wrote:<br>
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              <div>Hi Volker</div>
              <div><br>
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                <div class="gmail_quote">
                  <div dir="ltr" class="gmail_attr">Le mer. 17 mars 2021
                    à 11:01, Volker Schmidt <<a
                      href="mailto:voschix@gmail.com" target="_blank"
                      moz-do-not-send="true">voschix@gmail.com</a>> a
                    écrit :<br>
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                          As air is a fluid, this would cover both water
                          and ventilation outlets.<br>
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                        <div>?</div>
                        <div>
                          The boiling point of liquid air is −194.35 <a
                            href="https://en.wikipedia.org/wiki/Celsius"
                            title="Celsius" target="_blank"
                            moz-do-not-send="true">°C</a></div>
                        <div>Air is a mix of mainly three gases, and in
                          the context that  Martin has in mind certainly
                          not liquid.<br>
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                  <div><br>
                  </div>
                  <div>I said fluid, not liquid.</div>
                  <div>Fluids include gases and liquids.</div>
                  <div><br>
                  </div>
                  <div>Indeed this definition would appropriately cover
                    water, air and natural gas in pipelines.</div>
                  <div><br>
                  </div>
                  <div>All the best</div>
                  <div><br>
                  </div>
                  <div>François<br>
                  </div>
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