A continuity tester injects an AC signal into the conductors of a cable to find circuit faults.

一个连续性测试器给电缆导线注入交流信号，从而找到电路故障。

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You could artificially extend the signal to make it periodic but it would reqiure addition continuity at the endpoints.

你可以人为的拓展这个信号使其具有周期性，但是这要求在端点处附加连续性。

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His appointment would signal some continuity on the left.

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Naming Thomsen would "send a powerful signal that the chairman wants continuity, " says Joel Seligman, a professor of corporate law at Washington University's School of Law.

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