A master copy of something such as a film or a tape recording is an original copy that can be used to produce other copies.
柯林斯字典里查来的英语解释，电影或磁带就是指母带。可以用来做其他拷贝。在专业词汇里面的意思应该跟上面一样的。
Tool that makes a master copy of your database, makes one or more remote copies of the database, and then synchronizes updates to the databases.
创建数据库的主副本、一个或多个远程副本并且保持数据库的同步更新的工具。
A prized object in the factory is the stamper, the master copy of a software product that takes great precision to produce.
压模，软件产品的主拷贝，需要极大的精度去生产，是工厂的一件弥足珍贵的物品。
Slave servers (for example, those machines that want to provide a backup copy of NIS master databases) copy the published databases from the server.
从服务器（例如希望提供NIS主服务器数据库备份的计算机）将从服务器复制已发布的数据库。
By simply copying the array reference instead of cloning it, both the message and the class that produces it hold a reference to the master copy of the previous bids array.
通过简单地复制而不是克隆数组引用，消息和产生消息的类都保存了前一投标数组的主副本的一个引用。
If one LDAP master server is down, there needs to be a backup LDAP master server (with the latest updated copy of the principal database), which will take charge immediately.
如果一个ldap主服务器停止运行了，就需要备用的ldap主服务器(包含主体数据库的最新拷贝)立即接管服务。
Master copy of drawing should bear a red "Controlled Master Copy" stamp and kept in mould file.
图纸副本，于图纸复印件盖红色“受控副本”印章，分发制作组。
The simplest solution is to copy the master pages to a file directory that other projects can then reference.
最简单的解决方式是将主版页面复制到其他专案可以参考的档案目录。
The simplest solution is to copy the master pages to a file directory that other projects can then reference.
最简单的解决方式是将主版页面复制到其他专案可以参考的档案目录。
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