注册表已经被填入下列注册项：

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    +—————-+—————————————————+———————-+ | Warn Code | Short Description | Reference | +—————-+—————————————————+———————-+ | 110 | Response is Stale | Section 5.5.1 | | 111 | Revalidation Failed | Section 5.5.2 | | 112 | Disconnected Operation | Section 5.5.3 | | 113 | Heuristic Expiration | Section 5.5.4 | | 199 | Miscellaneous Warning | Section 5.5.5 | | 214 | Transformation Applied | Section 5.5.6 | | 299 | Miscellaneous Persistent Warning | Section 5.5.7 | +—————-+—————————————————+———————-+