磁带很贵，而且每被复制一次，音质就会有所降低。
Tape is expensive and loses sound quality every time it is copied.
这样做的优点是，可以直接在键和条目上进行集合操作，而不需要再复制一次。
The advantage here is the ability to perform set operations on keys and items without having to copy them.
根据配置，每条消息都将在另一个网格jvm中复制一次并在主分区停用时在那里处理。
As configured, each message is replicated once in another grid JVM and will be processed there if a primary partition goes down.
哺乳动物细胞的DNA复制启动是一个高度协调的过程，从而保证了每次细胞分裂中基因组只复制一次。
The initiation of DNA replication in mammalian cells is a highly coordinated process that ensures duplication of the genome only once per cell division cycle.
每一次你复制那首歌，可能就把它传给了一个不知道这首歌的人，也许是一个小孩子。
Each time you replicated that song, and maybe passed it along to someone who did not know it yet, a small child maybe.
由于我们的网络中只有一台额外的机器，我们只需复制配置一次，但您可以针对您的网络中的每台机器重复这个过程。
Since there is only one additional machine in our network, we need to copy the configuration over only once, but you could repeat the process for each machine in your network.
这一次，假设您定义一个复制碎片。
如果我们不得不为了人和机器而复制重复，那将是一个既浪费又愚蠢的办法，因此，我们尽力为这两个消费者仅表示一次数据。
If we had to duplicate data for both humans and machines, that would be a wasteful and silly approach, so we try to express values only once for both consumers.
通过再一次打开运行时工作台，并复制您刚刚创建的模版模型，创建一个样本模型。
Create the sample model by again starting a runtime workbench and copying the template model you have just created.
有时需要一次查看多个编辑器窗口，可能需要将某些内容从一个编辑器窗口复制并粘贴到另一个编辑器窗口，或者需要在一个编辑器窗口中键入内容时阅读另一个编辑器窗口中的信息。
Sometimes you want to view more than one editor window at a time, perhaps to copy and paste something from one to the other or to read information from one while typing in the other.
在一次演示中，小组人员通过分析手机拍摄的照片对钥匙进行了复制。
In one demonstration, the team cut duplicate keys after analysing images taken on a mobile phone.
可以一次复制整个数据库、多个相关对象或单个对象。
You can copy the whole database, related objects, or a single object at a time.
一个四模组机器人在2.5分钟内即可完成对从“供给区”选取出的立方体的重新组合，实现一次复制。
The four-module robot was able to construct a replica in 2.5 minutes by lifting and assembling cubes from the feeding locations, said Lipson.
改进的地方：我们将上下文切换的次数从四次减少到了两次，将数据复制的次数从四次减少到了三次(其中只有一次涉及到了CPU)。
This is an improvement: we've reduced the number of context switches from four to two and reduced the number of data copies from four to three (only one of which involves the CPU).
将复制操作配置为每30分钟发生一次，可以确保客户机不会因为过于频繁的复制操作而降低服务器和客户机的性能。
By configuring replication to occur every 30 minutes, you ensure that the client will not reduce performance of the server and client by replicating too often.
剪切并复制选区到一个新图层，一般这样做将会丢失掉选取的图层样式，所以在这之前我们必须给右下角图层重复添加一次样式。
Cut and paste the selection to a new layer. Once you've re-pasted the corner you cut off to a new layer, you would have lost its layer styles.
我们推荐每30分钟对这些数据库进行一次复制。
We recommend that these databases replicate every 30 minutes.
年2月，Furl进行了一次大动作的重新改版，推出了新功能缓存复制存档、书目格式的导出功能，还有推荐功能。
In February 2008, Furl launched a major redesign of its site, which included interesting new features like cached-copy archiving, export in bibliographic formats, and recommendations.
要复制WebSphereCommerce开发环境到多个工作站上，请在每个工作站上运行一次部署脚本
To replicate the WebSphere Commerce development environment onto multiple workstations, run the deployment script once on every work station
这个服务是一个确定的 “交付一次”机制，其可靠性只受要复制到的可用JVMs 的数量限制。
This service is an assured deliver-once mechanism with reliability only limited by the number of JVMs available to which to replicate.
原因是这样将进行一次完全刷新(full refresh)，并且应用过程使用INSERTS而不是使用复制表来自动填充空表。
The reason is that this way a full refresh will be made, and the empty tables will be populated automatically by the apply process using INSERTS instead of using the replication tables.
您能够创建一次占位符，然后将其复制到每一个测试计划中(当计划被实际实施时，标题和其他元数据将将被修改)。
You can create the placeholder once, then duplicate it for each test plan (with the idea that the headline and other metadata will be modified as the plan is actually developed).
这样迫使每个人在他们下一次复制时接收数据的新拷贝。
This makes everyone get a new copy of the data the next time they replicate.
注意，尽管在示例场景中不需要使用直接粘贴到目标位置的选项，但该选项对一次操作能够复制的数据库对象和数据存在限制。
Note that, although not needed in the example scenario, the option to paste directly into a target has a limit on the number of database objects and data that can be copied in a single operation.
通过使用模板，一次性地为数据库中每个表定义复制，可以复制整个数据库。
You can use templates to replicate an entire database by defining replicates for each of the tables in the database at once.
可以选择复制几个期间，但一次只能选择一个现状。
You can select several periods to copy for, but only one actuality at the time.
细胞每复制自己一次(细胞在死亡之前都会如此)，其端粒就会缩短，就像鞋带的塑料头会磨损一样。
Each time a cell replicates itself (as it does before it dies), the telomeres shorten, like plastic tips fraying on the end of shoelaces.
这种实体引用称为外部实体引用，它节省了您可能花在一次次复制并粘贴那些内容的时间。
That kind of entity reference, called an external entity reference, saves the time you might otherwise spend copying and pasting the content over and over again.
如果可能更新坐标列，但是源表包含一个时间戳列，其中记录了每行最后一次更新的时间，那么仍然可以避免批量复制。
If updates to the coordinate columns are possible, you may still be able to avoid bulk copies if the source table contains a time stamp column that records the time of last update for each row.
如果可能更新坐标列，但是源表包含一个时间戳列，其中记录了每行最后一次更新的时间，那么仍然可以避免批量复制。
If updates to the coordinate columns are possible, you may still be able to avoid bulk copies if the source table contains a time stamp column that records the time of last update for each row.
应用推荐