| 摘要 |
The teeth (11a-11c,12a-12c,13a-13c,14a-14c-15a-15c,16a-16c,17a-17c, 18a-18c) are arranged in recurring main groups each consisting of geometrical sub-groups and recurring setting subgroups. Each geometrical sub-group consists of teeth (11a-18a),11b-18b,11c-18c) of different heights while each setting sub-group consists of at least 6 teeth. |
