分指数
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分指数
n. A number or mark placed opposite the lower part of a；letter or symbol to distinguish the symbol; thus, a0, b1, c2, xn, have；0, 1, 2, and n as subindices.
分指数
n. A number or mark placed opposite the lower part of a；letter or symbol to distinguish the symbol; thus, a0, b1, c2, xn, have；0, 1, 2, and n as subindices.
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