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extended arithmetic
 extended arithmetic
el. 扩充运算
| element
 element
econ. 基元
hydroel.st. 成分; 单元; 电极; 电池; 零件
hydroel.st. од. 元素
math. 集合的元素
met. од. 元件
sport. 要素

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extended arithmetic

el. 扩充运算
extended arithmetic
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