主频率 meaning in Chinese
basic frequency
main frequency
master frequency
predominant frequency
primary frequency
principal frequency
Examples
- Master - frequency generators
主频率产生器 - As a result of the analysis , the dominant frequency was significantly affected by the pear firmness and mass , while the excitation point , detected point , excitation intensity and impacting material did not
结果表明，不同测点、材料、激励点和速度对响应主频率没有较大影响，而质量、坚实度的影响则显著。 - For example , the quenching and quenching plus low tempered structure of 38crmoal are hard to be differentiated by velocity method and the principal frequency technique . it will be better if they are differentiated by the method of relative attenuation coefficient
38crmoal钢的淬火与淬火+低温回火组织，用声速法和主频率比较法都难以区分，最好的方法是比较功率谱谱峰特征(幅度、数量、分布) 。 - Along with increase of pressure , the parameters such as velocity , amplitude , main frequency and quality factor of seismic wave change big gradually , while change very weakly with the change of temperature . through testing research for artificial crack and pore model , we conclude that crack density , azimuth , opening and the change of pore have obvious influences on speed , amplitude , attenuation ( or quality factor ) and main frequency of seismic wave etc . but , seismic wave dynamic characteristics are more evident than its kinematical characteristics for the change of crack and pore parameters . therefore , it offers reliable experiment foundation for detecting crack and pore by seismic wave kinematical characteristics ( such as amplitude , attenuation and main frequency etc . )
通过对人工裂缝和孔洞模型的超声波实验研究，可以认为：裂缝密度、方位、张开度和孔洞密度的变化对纵横波的速度、振幅、衰减(或品质因子q )和主频率等参数均有明显的影响，但裂隙参数的变化对地震波动力学特征参数(振幅、衰减、主频率等)的影响远远大于对运动学特征参数(速度等)的影响，这为利用地震波的振幅、衰减和主频率等属性参数进行裂缝和孔洞特征的检测提供了可靠的实验基础。 - The characteristics of calls are closely correlated to the ecology of bats , for example , the dominant frequency influences the body size of bats " prey , the detecting range of bats ; the structure of calls decides bats " ability to detect prey in the complicated environment . therefore , the research on factors , which influence the structure and characteristics of ultrasound and on the mechanism by which bats detect and orient the prey will promote the understanding of the ecological behavior of bats
由于声波的特征和蝙蝠的生态行为有着密切的联系，如声波的主频率影响蝙蝠可探测到的猎物的大小、猎物能被探测到的距离及猎物探测和躲避蝙蝠的能力，声波的结构则影响蝙蝠在干扰环境中探测猎物的能力，因此研究影响蝙蝠声波结构和特征的因素、探讨蝙蝠声波探测和定位的机制，可以更加深入地了解蝙蝠的生态行为。