| 单词 | identity element |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔Boolean algebra〕An algebraic system with two binary operations and an identity element that is used in symbolic logic and in logic circuits in computer science.布尔代数：一种用同一元素和二进位演算的代数学体系，用于符号逻辑和计算机科学中的逻辑电路美国传统〔additive identity〕An identity element that in a given mathematical system leaves unchanged any element to which it is added.加性恒等式：在特定的数学系统中与任何元素相加都不变的单位元素美国传统〔identity〕Identity element.单位元素，幺元美国传统 |
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