Unchecked exceptions which are descendents of RuntimeException class are the ideal candidate exceptions handle non-recoverable errors such as resource non-availability or some null Pointers.

未检查异常作为运行时exception类是理想的异常侯选处理不可恢复性出错，如资源不可用或者空指针。

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It is ideal for use as a null detector for lowimpedance bridge balancing.

对于低阻抗电桥平衡而言，它是一种十分理想的零位探测器。

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