A condition in which the system operates at reduced levels of service. These circumstances are usually caused by unavailability of various equipment units or subsystems.
系统降低性能而继续运行的一种状态。这种情况往往是由于设备的某些部分或某些子系统不能继续使用而引起的。
These circumstances are usually caused by unavailability of various equipment units or subsystems.
这种情况往往是由于设备的某些部分或某些子系统不能继续使用而引起的。
These circumstances are usually caused by unavailability of various equipment units or subsystems.
这种情况往往是由于设备的某些部分或某些子系统不能继续使用而引起的。
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