| 摘要 |
<p>A device for forming trigrams and hexagrams was three rotatable mounted for rotation about a common axis. Each plate has four exposed faces, with two of the faces representing a solid line of a trigram and the remaining two faces representing a broken line of a trigram. The device allows the plates to be aligned to form three stacked lines representing a trigram of 64 possible trigrams. Preferably the device includes a lock arrangement for facilitating alignment of the plates.</p> |
