| Line 29: | Line 29: | ||
'''Production:''' | '''Production:''' | ||
[[Image: | [[Image:abacusProduction2.jpg|thumb|left|Reconsideration of abacus structure]] | ||
<br style="clear:both"> | <br style="clear:both"> | ||
| Line 29: | Line 29: | ||
'''Production:''' | '''Production:''' | ||
[[Image: | [[Image:abacusProduction2.jpg|thumb|left|Reconsideration of abacus structure]] | ||
<br style="clear:both"> | <br style="clear:both"> | ||