Objective:To explore the sterile effect and influence factor of stable-magnetic field.
目的：探讨恒定磁场的杀菌作用及其影响因素。
The influence of noise on identification precision, the effect factor of the computing precision and the reason of missing estimation some modes were analyzed and discussed.
从理论和试验两个方面分析和研究噪声对识别精度的影响，影响识别精度的因素，以及部分模态成分的模态参数不能够被识别的原因。
The erticle analyzed the emerge and harm and influence factor of blasting vibration effect, given the concerned measurements to decreasing blasting vibration effect.
通过对爆破地震效应的产生、危害及其影响因素分析，给出了减小爆破地震效应的措施。
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