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1. The program interchange is a crucial part of the system's operation.
程序交换是系统运行的关键部分。
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2. The program interchange allows for seamless integration between different systems.
程序交换使得不同系统之间的集成变得无缝。
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3. During the program interchange, data is transferred between two or more computers.
在程序交换期间，数据在两台或多台电脑之间传输。