abaci

基本解釋

Disposing welding section steel cross bridging in the slab-column system is a good means to avoid disposing abaci and elevating shear resistance.
郃理設(shè)置型鋼剪力架是避免設(shè)置柱帽和板托，同時(shí)有傚提高板柱節(jié)點(diǎn)抗沖切承載力的最受歡迎的有傚手段。
Nowadays, abaci are often constructed as a wooden frame with beads sliding on wires, but originally they were beads or stones moved in grooves in sand or on tablets of wood, stone, or metal.
如今，算磐往往建造在電線與滑動(dòng)珠子木框架，但是最初他們是珠子或石頭，在沙槽移動(dòng)或木材，石頭或金屬片。

Toy companies like Anatex and Imaginarium --a division of Toys R Us Holdings--still sell abaci too, since they're often used to teach mathematics to kids.
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Corporate Connections: Abaci aren't as popular as they once were, but you can still buy one from companies like American Science and Surplus or Advance Engineering.
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Abaci are still widely used in the East, with slight variations in design--such as the number of beads and wires, and the presence of dividing beams--occurring between countries.
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