Glossary
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| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
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| X-X AXIS |
| The horizontal axis passing through the centroid of a cross section (note the axis convention alters with EBN1993). |
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| Y-Y AXIS |
| The vertical axis through the centroid of a cross section. |
