我们说实际是因为您应该集中于未来几年中的需要；到您超过该时间期限时，产品和需求已经发生了改变。
We say realistic because you should focus on what you'll need in the next few years; by the time you get beyond that time scale, the products and requirements will have changed.
当邮件数据库超过它的警告门限时，用户打开邮件数据库时会收到错误提示，然后会发现如图9所示的主题为Quota Warning Report的电子邮件。
When a mail database exceeds its warning threshold, users receive an error when they open their mail database, and then find a message with the subject Quota warning Report as shown in figure 9.
当柴油机的转速、油压、油温及水温超过规定的极限时，CZB能使柴油机停车，并发出声、光报警信号。
When the engine speed, oil pressure, oil temperature and water temperature exceed the specified limit values, CZB will make the engine stop, and at the same time give sound and light warnings.
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