送交者: tinaliang 于 2009-11-24, 09:46:17:

回答: Shell snails and shell fishes all have different skews: chirality 由 blobfish 于 2009-11-24, 09:43:25:

• this is symmetry done by physicist, i learned from a talk today (无内容) - blobfish (0 bytes) 2009-11-24, 09:48:02 (389642)

加跟贴