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{ \Rule <dimenWidth> <dimenHeight> <dimenDepth> }
x\Rule{3px}{1ex}{2ex}x
x\Rule{3px}{2ex}{1ex}x
a\Rule{5px}{4ex}{2ex}^b_c d
a\Space{5px}{4ex}{2ex}^b_c d
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2025-6-5 19:44 GMT+8
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