ion"></a><br /></dt>
<dd><p>Indicator to let classes which use the <a class="reference internal" href="#classomexmeta_1_1PhysicalProperty"><span class="std std-ref">PhysicalProperty</span></a> know whether a particular instance of physical property has been set by calling the hasProperty() method. </p>
</dd></dl>

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</dd></dl>

</section>


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