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循环调制
1、targets circular───圆形目标
2、advisory circular───咨询通告；咨询通令；[计]咨询通令
3、circular reasoning───循环论证；循环推理
4、modulation───n.[电子]调制；调整
5、circular───adj.循环的；圆形的；n.通知，传单
6、modulation index───调制指数，调制度；[电子][通信]调制指数
7、frequency modulation───调频
8、specie circular───圆形种
9、amplitude modulation───n.调幅；调幅；波幅调制
1、An circular radial shearing interferometer based on spatial phase modulation is proposed to measure the transient near infrared laser pulse wavefront with high precision.───提出了一种基于空间相位调制技术可用于近红外瞬态波前高精度检测的环形径向剪切干涉仪。
2、While the modulation characteristics disappear as the outer circular aperture is bigger than 1.5 times of the beam waist size, the results offer reasonable aperture parameter for diffraction.───当外孔大于1.5倍束腰时，衍射后轴上光强调制被有效压抑，这为选择光阑提供了合理参数。
3、reductive perturbation method of multiple-scales is used to investigate the weak nonlinear modulation of the stress wave on the wall of a fluid-filled elastic circular tube.───应用多重尺度约化微扰方法研究了充满流体的圆形弹性管壁上应力波的弱非线性调制问题。