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<?php var_dump(mb_substr("香港亿阳实业钻井工程施工服务应付账款转让项目（二期）", 0, 8, 'utf-8') . '****' . mb_substr("香港亿阳实业钻井工程施工服务应付账款转让项目（二期）", -8, 'utf-8'));
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48.25 ms | 402 KiB | 5 Q