防御率
- 网络era;Earned run average
防御率-
我们想知道他的投手防御率。
We might want to know his ERA .
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此时，你的最佳防御率保持目前的最新威胁，如何防范他们。
At this point , your best defense rates staying current on the latest threats and how to defend against them .
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当前的DDoS防御系统误警率相对比较高，对合法用户造成了很大的影响。
The current DDoS defense system has relatively high false positive rate , as a result , it affects legitimate users seriously .
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然而，这些低得可怜的利润率提供了一些防御：营运利润率超过26%的Alphabet等科技巨擘为何要开始生产汽车？
Yet their puny margins offer some defence : why would tech titans such as Alphabet , with an operating margin above 26 per cent , start making cars ?