a</td>
 <td class="center">theta</td>
 <td class="center">temp</td>
 <td class="center">pressure</td>
 <td class="center">density</td>
 <td class="center">V sound</td>
 <td class="center">dynamic<br />viscosity</td>
 <td class="center">kinematic<br />viscosity</td>
 <td class="center">ratio</td>
 </tr>
 <tr>
 <td class="center">kft</td>
 <td> </td>
 <td> </td>
 <td> </td>
 <td class="center">deg R</td>
 <td class="center">psf</td>
 <td class="center">slugs/ft<sup>3</sup></td>
 <td class="c