英语词汇“triangular numbers”的读音、翻译、释义、用法及例句-比价网

词汇	triangular numbers
释义	triangular numbers ‘数’三角形数 (初项为1, 公差为1之等级数1, 2, 3, 4, 5 ..等数顺序相加之数即1, 3, 6, 10, 15 ..)
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