一些产品组合是不能安装在同一台机器上的。
Some product combinations are blocked from installation on the same machine.
现代机器虽复杂，但实质上不过是简单机械的组合。
Complicated as a modern machine is, it is essentially a combination of simple machines.
现代机器虽复杂，但实质上不过是简单机械的组合。
Complicated as a modern machine is, it is essentially a combination of simple machines.
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