中式算盘 Suanpan
（重定向自Swanpan）
中式算盘，是中国传统的算数工具，一般多为木制（或塑料制品），矩形木框内排列一串串等数目的算珠称为档，中有一道横梁把珠分隔上下两部分，上半部每算珠代表5，下半部每算珠代表1，梁上有定位点（亦称个位点）。中式算盘也是各种东亚式算盘的始祖。
swanpan
/'swæn'pæn/
英汉-汉英词典
n. (中国的)算盘
词组 | 习惯用语
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- swanning n. 〈主英口〉漂游
- swampland n. 沼泽地
- Swansea n. 斯温西（英国威尔斯南部一海港）
- swapping n. 交换；调动 v. 交换（swap的ing形式）
中文百科
英语百科
Suanpan 中式算盘
（重定向自Swanpan）
The Suan Pan (simplified Chinese:算盘; traditional Chinese:算盤; pinyin:suànpán, suanpan or souanpan) is an abacus of Chinese origin first described in a 190 CE book of the Eastern Han Dynasty, namely Supplementary Notes on the Art of Figures written by Xu Yue. However, the exact design of this suanpan is not known. Usually, a suanpan is about 20 cm (8 in) tall and it comes in various widths depending on the application. It usually has more than seven rods. There are two beads on each rod in the upper deck and five beads on each rod in the bottom deck. This configuration is used for both decimal and hexadecimal computation. The beads are usually rounded and made of a hardwood. The beads are counted by moving them up or down towards the beam. The suanpan can be reset to the starting position instantly by a quick jerk around the horizontal axis to spin all the beads away from the horizontal beam at the center.
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