... 搜索测频法 scanning frequency measurement 搜索测向法 scanning direction finding 搜索电路 search circuit ...
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two way scanning frequency measurement 双程搜索测频法
one way scanning frequency measurement 单程搜索测频法
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By counting the number of such X-rays while scanning the frequency of the laser pulse, the team could make a very precise measurement of the photon energy required to drive the 2s-2p transition.
通过统计所发出X光的数量，然后对照激光脉冲的频率，测量小组能得出一个非常精确的测量值，从2s能级到2p能级跃迁所需的量子能量。
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