beat effect meaning in Chinese
拍频效应，差频效应
拍效应
Examples
- The doppler frequency can be obtained as a heterodyne or beat effect .
由于外差或频差效应，能够得到多普勒频率。 - By means of the ironing effect of heating - plate and the beating effect of vibrating - roller . the surface of toe part or heel - seat will be made flat and will have a better edge
本机利用圆锥滚轴对放在热底模上的鞋底不断振动和推压来实现按摩去皱。 - Abstract : we have studied theoretically a beat effect in a four - level system due to fifth - order optical polarization , and considered the cases that the pump beams have either narrowband or broadband linewidth . we have found that the accuracy for the energy - level splitting measurement is determined by the homogeneous linewidths of the optical transitions . that is to say , this technique can achieve doppler - free precision in the measurement of the energy level splitting between two excited states which are dipolar forbidden from the ground state
文摘:研究了四能级系统中基于五阶极化的拍频效应，考虑了抽运光束为窄带线宽或宽带线宽的情形.发现其对能级分裂的测量精度决定于光学跃迁的均匀增宽.也就是说，这种技术在测量与基态是偶极禁戒跃迁的两激发态之间的能级分裂时，可得到消除多普勒增宽的精度 - Because the air - borne imaging system is required a far acting distance and the focal length of its optical system is long . influenced by the unsteady or moving platform mounted on plane , the change between the frames of image sequence is more . problems of image fuzziness and instability tend to be striking out , which becomes a bottleneck restricting the air - borne reconnaissance , collimation , evaluating beat effect
机载光电成像系统，由于要求作用距离远，故其光学系统焦距长，受其载体姿态变化和振动的影响，图像序列帧间变化过大，造成观察者觉得模糊、不稳定，己成为制约空中侦察、瞄准、打击效果评估等功能的瓶颈。