stimulation ratio

La had stimulative effect on soil nitrifier at low concentration and the maximum stimulation ratio reached 70 percent while had inhibitory effect at high concentration and the inhibition was strengthened with increasing concentration.

在低浓度下，镧对土壤硝化细菌有强烈的刺激作用，最大刺激率达到70%，随着浓度的升高则产生抑制作用并不断增强.镧对土壤反硝化细菌作用不明显。

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Conclusion Between biaural and monaural acoustic stimulation VEMP, there are no significant differences in provocation rate, latency, but there are marked differences in amplitude, interaural amplitude ratio, interaural latency difference and interaural asymmetric ratio.

结论单侧给声侧、双侧短纯音刺激VEMP的引出率、潜伏期无明显差异，但振幅、耳间潜伏期差、耳间振幅比和耳间不对称率均有显著性差异。

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The results show that the energy ratio of this new production method is much higher than that of the traditional thermal stimulation method.

计算结果表明，该种开采方法的能量效率远高于传统的注热开采方法。

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