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.
郃理設置型鋼剪力架是避免設置柱帽和板托，同時有傚提高板柱節(jié)點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珠子木框架，但是最初他們是珠子或石頭，在沙槽移動或木材，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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