| http://www.w3.org/ns/prov#value | - Example 4 is a case in which as shown in FIG. 10(b), the thicknesses tx of radially extending interior walls are stepwise increased as the interior walls go from the radially inner side to the radially outer side, and the thicknesses ty of the interior walls extending in a direction of a major axis in the elliptical cross section are stepwise increased as the interior walls go from the radiall
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