为了应对计算机病毒的威胁，人们设计了防病毒软件和硬件防病毒网关。
To fight computer virus, people develop antivirus software and hardware antivirus gateway.
对于防病毒软件和硬件防病毒网关而言，提高防病毒引擎的病毒码检测效率是提高它们性能的关键所在。
The performance of antivirus software and antivirus gateway is determined by the efficiency of their virus detection engine.
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