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The lexicon comprises two distinct categories: Term Lexicon and Hotword Lexicon The Term Lexicon facilitates translation rules for specific vocabulary (such as product names, ambiguous terms, and loanwords) in cross-lingual translation scenarios, ensuring translation accuracy Meanwhile, the Hotword Lexicon significantly enhances speech recognition accuracy for proprietary terms (including brands and technical terminology) by incorporating weighted entries When encountering homophones with identical tones, the system prioritizes matches with higher-weighted hotwords, thereby enabling more precise and professional live subtitle generationPoints of Attention

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Fundamental informationProductAbbreviation in CAMConsoleAuthorization by TagAuthorization GranularityIP RestrictioncloudWafwafSupportedSupportedResource levelPartially supportedNote The authorization granularity of cloud products is divided into three levels: service level, operation level, and resource level, based on the degree of granularityService level: It defines whether a user has the permission to access the service as a whole A user can have either full access or no access to the service For the authorization granularity of cloud products at service level, the authorization of specific APIs are not supportedOperation level: It defines whether a user has the permission to call a specific API of the service For example, granting an account read-only access to the CVM service is an authorization at the operation levelResource level: It is the finest authorization granularity which defines whether a user has the permission to access specific resources For example, granting an account readwrite access to a specific CVM instance is an authorization at the resource level

Fundamental informationProductAbbreviation in CAMConsoleAuthorization by TagAuthorization GranularityIP RestrictionDomaindomainSupportednot supportedOperation levelPartially supportedNote The authorization granularity of cloud products is divided into three levels: service level, operation level, and resource level, based on the degree of granularityService level: It defines whether a user has the permission to access the service as a whole A user can have either full access or no access to the service For the authorization granularity of cloud products at service level, the authorization of specific APIs are not supportedOperation level: It defines whether a user has the permission to call a specific API of the service For example, granting an account read-only access to the CVM service is an authorization at the operation levelResource level: It is the finest authorization granularity which defines whether a user has the permission to access specific resources For example, granting an account readwrite access to a specific CVM instance is an authorization at the resource l

什么是云服务器 CVM ？云服务器 CVM（Cloud Virtual Machine，CVM）是腾讯云提供的可扩展的计算服务，无需购买昂贵的物理硬件，即可在几分钟内获得安全可靠的虚拟计算环境。CVM 免去了传统服务器需要预估容量和前期投入的麻烦，让您能够按需启动任意数量的实例并快速上线业务。同时，您可以随时自定义并调整 CPU、内存、硬盘、网络、安全等全部资源，真正做到即用即付、弹性伸缩。

本文将从云服务器实例功能特性、常见业务场景、注意事项及最佳实践等方面介绍如何进行实例选型，帮助您了解应如何结合实际业务场景选购云服务器。实例选型分析过程如下图所示：

CVM 价格参考本文汇集目前腾讯云所在区域的各类型云服务器的价格供参考。实际成交价格以最后下单为准。以区域字母顺序排列，方便查询。表格中实例规格可参考云服务器实例规格介绍获得更多信息。

问题描述在云服务器 CVM 控制台上找不到已购买的实例。可能原因1 

云服务器可能会因安全违规（内容或行为违规）或被 DDoS 攻击被封堵隔离。本文介绍云服务器因安全违规导致外网被隔离无法登录问题的解决方案。故障现象云服务器被隔离可能由于该台服务器违反了当前法律法规的要求。您可以通过以下方式查看该台服务器是否处于被隔离的状态。云服务器外网被隔离时，将会通过

操作场景Vsftpd（very secure FTP daemon）是众多 Linux 发行版中默认的 FTP 服务器。本文以 CentOS 76 64位操作系统的腾讯云服务器（CVM）为例，使用 vsftpd 软件搭建 Linux 云服务器的 FTP 服务。示例软件版本本文搭建 FTP 服务组成版本如下：