请输入您要查询的英文单词：
单词
plus-minus sign
释义
Definition of
plus-minus sign
in English:
plus-minus sign
noun
The mathematical symbol ‘±’.
Origin
1930s
.
Definition of
plus-minus sign
in US English:
plus-minus sign
noun
The mathematical symbol ‘±’.
Origin
1930s.
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control board
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更新时间：2026/1/30 5:27:59