By enabling pass by reference, the parameters of the method are not copied to the stack with every remote call, which can be expensive.

通过引用传递，方法的参数没有被复制到每个远程调用的堆栈中，而这个复制过程可能是代价高的。

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By using this knowledge, you can pass in a parameter to the read method or the readline method to control how many characters are read.

通过使用这个知识，可以向read或readline方法传递一个参数，控制读取的字符数。

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To summarize, the ORB pass by reference option basically treats the invoked EJB method as a local call (even for EJBs with remote interfaces) and avoids the requisite object copy.

总的来说，OR B通过引用传递选项基本上将调用的EJB方法作为本地调用对待(甚至对于带远程接口的EJB)，并避免必需的对象复制操作。

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