名词
中文翻译：阻块检查字符
同义词：
['block check character', 'block check character', 'block check character']
例句：
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1. The program uses a block check character to ensure data integrity.
该程序使用一个块检查字符来确保数据完整性。
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2.The block check character is used to prevent data corruption during transmission.
块检查字符用于防止数据传输过程中的数据损坏。
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3. The block check character is a security feature that helps protect against unauthorized access.
块检查字符是一种安全特性，有助于保护免受未经授权的访问。