dual checking
双重检查
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The fixed length format, data echoplex, data sum and dual redundancy checking was adopted in data transmission to avoid the communication errors.
数据传送采用定长格式，及回送和求和双重冗余校验，以确保通信。
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The Scalar i6000 HD provides high performance and availability with active-active dual robotics for fast data access times, its Active Vault technology (that includes policy-based integrity checking) and providing big data archives on tape.
FORBES: Adventures in Archiving
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