Session locks are those that span multiple transactional units of work; they cover the entire duration of some business process.

会话锁是指那些跨越多个工作事务单元的锁，它们涵盖某些业务流程的整个持续期间。

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If the state is Closed, we can calculate the work item status based on Duration and Time Spent value.

如果状态是Closed，那么我们可以基于持续时间和花费时间的值，来计算工作项的状态。

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Duration: the duration of the work item, this is shown as "Estimate" in the UI, if the contributor doesn't set value to this data field, we believe its value is 0.

持续时间：工作项的持续期，它会在用户界面中显示为“Estimate”，如果操作者并没有对该数据区域设置值，那么我们相信它的值为0。

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Today we're going to move away from the first dimension of music that we've been looking at, which is duration, or time, and begin to work with the second, which is pitch, and melody.

今天我们要结束对音乐的第一个维度的学习,即时值,或者说拍子,并开始讨论音乐的第二维度,即音高与旋律

耶鲁公开课 - 聆听音乐课程节选

And so we might need to work out various, more complicated, formulas here, where we multiply the pain times its duration and take into account its intensity, get the sheer quantity of pain that way.

我们需要编制出各种，更复杂的公式，以便增加痛苦的倍数，延续时间,还要考虑痛苦的强度，获得痛苦的纯量。

耶鲁公开课 - 死亡课程节选

As part of his submission he has also invited speakers to give talks on topics relating to his work throughout the duration of the exhibition.

BBC: NEWS | Entertainment | Turner hopefuls unveil their work

Combined with other exams, this test helps determine the geographical region students will work in for the duration of their foundation programme - a two-year training course which forms the bridge between medical school and training for a specialism.

BBC: Junior doctor

He said that work would continue uninterrupted for the duration of the closures, regardless of the weather.

BBC: Guernsey Airport closures 'will be last', says director