Only one task may hold the mutex at a time, and only this task can unlock the mutex.
一次只能有一个任务持有互斥锁，并且只有这个任务可以解锁互斥锁。
All this was compatible with older devices so long as there was only one authoritative timekeeper; but with urban growth and the multiplication of time signals, discrepancy brought discord and strife.
所有这些都与旧的设备兼容，只要只有一个权威的计时器；但随着城市的发展和时间信号的倍增，报时的差异导致了不和与冲突。
In another words, you only need one VM template for each operating system — this saves time and disk space.
换言之，对于各种操作系统，您都只需要使用一个VM模板——这可以节省时间和磁盘空间。
This means that while multiple processes and threads can read from the same database at the same time, only one is able to write.
这意味着当多个进程和线程可以在同一时间从同一数据库读取数据，但只有一个可以写入数据。
What's interesting with this model is that multiple readers are permitted access to the data at one time, but only one writer.
这个模型有趣的地方在于允许多个线程同时访问相同数据，但同一时刻只允许一个线程写入数据。
This will display only one section at a time, and is effective for containing lots of information in a section, if the information is not dependent on another section in order to be effective.
这个小部件一次仅能显示一个部分，并且能够在一个部分中包含许多信息，只要这些信息不依赖于另一个部分。
With this design, the inner table retrieves only one work item at a time, so that as the sub-work items count increases, it takes an increasingly longer time to build the report.
有了这个设计，内部表格一次只获取一个工作项，这样随着子工作项数量的增加，构建报表就需要花费更长的时间。
This time he only printed two hundred copies and offered them at one guinea each as it was smaller and less expensive to print.
这次他仅印了两百本每本只卖一几尼，原因是这次的书比上次的小，所以印起来更加便宜。
You can even "lend" a book to a friend - although held to a two-week maximum, one time a title and only on books whose publishers have permitted this feature.
你甚至可以“借”书给朋友——虽然有两周的时间期限、每次一本，而且只能借其发行商允许这一功能的书籍。
The code in this article is actually non-vector (also known as scalar) code, meaning that it only works with one value at a time.
本文中的代码实际上是非向量的(即标量)代码，这意味着一次只处理一个值。
He said the Mahina has only seen this type of case one other time in its 30 years of operation.
他说在马西纳号经营的30年间，同样的案例之前只发生过一次。
This attitude is fundamental to achieving results. Prioritize your important tasks in order and focus on only one at a time.
把你的重要任务按优先排序，每次只著眼于其中一个。
Everyone takes it at the same time — June 7 to 9 this year — and has only one shot.
统一参加考试的时间是每年的6月7号至9号，而且每年仅此一次机会。
Since you are only creating one task at this time, start by creating the file prune.php in the new scripts directory.
由于这次将只创建一项任务，因此首先在新scripts目录中创建文件prune.php。
While this is a very slow and mellow track – it’d be perfect for some quality time with your one and only.
这是一首旋律很缓慢的，很轻柔的歌——在某个精心的时刻，只有你很你的另一半，这是最棒的。
The exercise was then repeated, but this time they added a single rule: Each member was allowed to only have one unit on the circle between them and the next team member.
然后该训练重复进行，此次他们加入了一个规则：每个成员都只能在循环上他们和下一个团队成员之间放一个物品。
In one iteration, this usually takes little time, so the system resources are claimed for only a short period.
这在一次的迭代中占有很少时间，所以只是短时间占用系统资源。
I know I'm not the only one that has a difficult time getting out of bed, so this really helps me to start my day with a feeling of joy and gratitude.
我知道我并不是唯一一个喜欢赖床的人，而这样做真的对我有很大帮助，我可以心情愉悦并心怀感激地开始新的一天。
In this application, you will only have one DMA command active at a time, so all of your operations will use 0 as the DMA tag.
在这个应用程序中，一次只有一个dma命令是激活的，所以所有的操作都将使用0作为DMA标签。
And I plan to make it this time, God willing, one day at a time, but I don't feel safe right now, in the only place I can ever feel safe, here with my Serenity posse Two posse.
我想好了这次一定彻底戒了，上帝的旨意，每天都召唤我。但现在我感到不安，在这个唯一能让我心安的地方，在我的平稳互助见面会二期的当口上。
This way one saves not only the time one would have wasted waiting, but the time in having the meeting too, leaving one free to get some work done instead.
这样做，人们不仅可以省掉本来要浪费在等其人上的时间，还节省了开会的时间，人们有时间来完成一些工作。
After the divorce, Barack Jr. only saw his father one more time, in Hawaii, in 1972, when this photograph was taken.
离婚后，1972年在夏威夷小奥巴马又一次见到他的爸爸，这张照片记录了这一瞬间。
For an active/passive storage RAID array, your host can only reach one single LUN from this array by one of these two paths at any time.
对于主动/被动存储器RAID阵列，任何时候，您的主机只能通过其中一条路径到达该阵列的一个LUN。
The first time we met I knew this was the only one I wanted to marry.
我们第一次见面的时候，我就知道我要结婚就唯独是她。
At the same time, however, only one-hundredth of one percent of the population of South Asia had access to this information network.
但是，与此同时，在百分之一的一百人中只有一名南亚人使用这一信息网络。
At the same time, however, only one-hundredth of one percent of the population of South Asia had access to this information network.
但是，与此同时，在百分之一的一百人中只有一名南亚人使用这一信息网络。
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