As mentioned earlier, each object can also cache the JNDI references it USES in instance variables, so that each object only has to access a reference one time.
正如前文所述，每个对象也可以缓存它在实例变量中使用的JNDI引用，所以每个对象在某一时刻只能访问一个资源。
In previous versions of Modeler, the cut-and-paste function for process elements could act on only one object at a time.
在早期版本的Modeler中，针对流程元素的剪切和粘贴功能一次只能作用于一个对象。
A critical section is an object used to make sure, that some part of the code is executed only by one thread at a time.
临界区用来确保代码的某些部分同一时间只能由一个线程执行。
To overcome this, you usually add Critical Sections all over your code to make sure that only one thread can access the object at one time.
为了克服这个，你通常添加在你的所有关键代码段，以确保只有一个线程可以在同一时间访问的对象。
At the same time, a recordset object represents only one of the selected records, the current record.
资料录集物件在相同时间内只能表示一笔选取的资料录，即目前资料录。
In the latter case, of course, only one thread at a time is allowed to execute a class method because there is only one class object that is Shared by all callers.
在后面一种情况中，同一时间只会有一个线程可以执行这个类方法，因为对于所有的调用者来说，都只有一个类对象可被使用。
Classes implementing Singleton pattern will ensure that only one instance of the object ever exists at any one time.
使用类来实现单例模式可以确保在任何时间只有一个实例对象。
Only one object or item within a container can have the focus at any one time.
容器中只有一个对象或项目可在任何时间都具有焦点。
Only one object or item within a container can have the focus at any one time.
容器中只有一个对象或项目可在任何时间都具有焦点。
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