Napier's bones
01
纳皮尔的骨头, 纳皮尔棒
a set of numbered rods used for multiplication and division, invented by John Napier in the 17th century
语法信息
有生性状态
无生命
形态构成
复杂复合词
可数
复数形式
Napier's bones
例子
She relied on Napier's bones to compute large multiplications without a calculator.
她依靠纳皮尔算筹在没有计算器的情况下计算大乘法。



























