The signature aggregation feature allows builders and batch submitters to also aggregate signatures (eg. BLS, later with SNARKs), greatly reducing the data that goes on chain. This is a critical cost-saving feature for rollups, where data costs dominate.
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签名聚合功能允许构建者和批量提交者也聚合签名（例如 BLS，后来使用 SNARK），大大减少了链上的数据。对于数据成本占主导地位的汇总而言，这是一项关键的成本节约功能。
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