This system used for testing weak light is called single-photon counter.

这就是用于检测微弱光的单光子计数器。

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The most important parameter in the single-photon counter is the total sensitivity.

这就是用于检测微弱光的单光子计数器。

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The most important parameter in the single-photon counter is the total sensitivity.

这就是用于检测微弱光的单光子计数器。

youdao