three-fold coincidence

To Implement the "Three Represents' theory" must Insist on the Principle of Three-coincidence

贯彻三个代表必须坚持三个一致性

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The three photon decay of positronium was further studied using positronium source composed of~ ( 22) Na and silica aerogel and triple fast coincidence method.

用~（22）Na和气凝硅胶构成的电子偶索源及三重符合的NaI（T1）计数器，测量了正电子偶素三光子衰变。

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Phenotype screening test showed that 173 out of 572 isolates were highly AmpC beta-lactamases producing strains, of which, 148 tested positive by three-dimensional test with the coincidence rate as 85.5%.

572株革兰阴性菌从药敏表型筛选结果分析，表现为高产AmpC酶的菌株共173株，其中148株三维试验阳性，符合率为85.5%。

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A four-detector time differential perturbed angular correlation spectrometer is built based on the original rotating three-detector spectrometer in order to improve the accuracy and reliability of the measurement and to increase the coincidence efficiency.

为提高实验效率、精度和可靠性，将转动三探头谱仪改建为四探头时间微分扰动角关联谱仪。

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