The default value for the polling interval is 30 seconds and is appropriate for initial testing or for small production environments.

轮询间隔的缺省值为30秒，适合于初始测试或小型生产环境。

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The interval time of 1 minute is good for testing the synchronization because of its fast effect.

分钟的时间间隔能够比较快地看到效果，适合用于对同步进行测试。

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When identifying risk and risk amounts, it is important to consider the scope of risks to be covered, holding period, confidence interval, correlation between risks, and stress testing.

在把握风险种类和程度时，必需要考虑风险对象的范围、持有期限、信赖水平、各风险之间的关系和压力测试理念。

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Dr. CASTRO: Then if it's positive, you add another couple of weeks for drug resistance testing, so you can see already a month interval easily going by before you have any result where you can hang your hat on.

NPR: TB Traveler Exposes Diagnosis Problems

By reading the encrypted data off of two cards and testing thousands of potential site codes against both cards until the decoded data displays a predictable interval between the two, he can find the site code and use it to create more card keys with a magnetizing device.

FORBES: Hacker Will Expose Potential Security Flaw In Four Million Hotel Room Keycard Locks