Some performance tests have non-functional requirements for volumes of business transactions achieved over a specified duration in a steady state.
有些性能测试拥有稳定状态下指定持续时间内业务交易上的非功能性需求量。
Business service usage report: the business service usage report gives a volume metric that shows the number of times a business service was invoked by the organization within the specified duration.
业务服务使用情况报告：业务服务使用情况报告提供量方面的度量，说明特定时间内组织调用业务服务的次数。
The duration datatype specified in the XML Schema 1.0 Datatypes Recommendation (see Resources) is a partially ordered type that represents a period of time.
XMLSchema 1.0DatatypesRecommendation（参见参考资料）中指定的duration 数据类型是一个半序类型（partially orderedtype），表示一个时间段。
Plays the sound of a beep of a specified frequency and duration through the console speaker.
通过控制台扬声器播放具有指定频率和持续时间的提示音。
When the duration of stay specified in the visa is extended, a foreigner shall adhere to the purpose specified in the original visa and stay within the extended duration of stay.
签证停留期限延长后，外国人应当按照原签证规定的事由和延长的期限停留。
When the duration of stay specified in the visa is extended, a foreigner shall adhere to the purpose specified in the original visa and stay within the extended duration of stay.
签证停留期限延长后，外国人应当按照原签证规定的事由和延长的期限停留。
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