一块可移动的板，装有几百个端子，用接插线(短接线)将端子连接起来，这些连线决定了机器的不同程序。
A removable board containing hundreds of terminals into which patch cords short wires are connected these determine the different programs for the machine.
一块可移动的板，装有几百个端子，用接插线(短接线)将端子连接起来，这些连线决定了机器的不同程序。
A removable board containing hundreds of terminals into which patch cords short wires are connected these determine the different programs for the machine.
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