With the exception of the power source, all three versions are identical in operation and specification.

除了电源之外，这三款破碎机在运行和规格上完全相同。

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If any of the above steps fails with an exception that the service constructor may throw (according to its exception specification), the service constructor also fails by throwing that exception.

如果以上任何步骤因服务构造函数可能抛出(根据其异常规范)的异常而失败，则服务构造函数也会抛出该异常并以失败告终。

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