Many system engineers have a hard time understanding their own workload or job behavior.

许多系统工程师很难理解他们自己的工作量或者工作特性。

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A bad network card, hard drive, or memory might result in your system spending a long time waiting for information.

不能正常工作的网卡、硬盘或内存，都可能导致系统花费很长的时间等待信息。

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If this is a live system, plan time to repair any damage a test may cause, such as a failed router or hard disk.

如果测试是在活动的系统上进行的，应该计划相应的时间以修复测试可能导致的任何破坏，例如路由器或硬盘故障。

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However, with the new clinical data, Intuitive Surgical may have a hard time promoting the use of its system for hysterectomies.

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Moreover, it is hard to imagine a system in which individuals must give permission each time a friend wants to transfer their contact details.

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Solid-state storage and memory technologies in general use less power than hard disk drives when they are active, and thus there can be power savings if some solid-state storage and memory can be used in a mixed storage technology environment in a way that reduces the spinning time of hard disk drives and thus decreases the power needs of a storage system.

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