So long distance and high frequency modulation cannot exist underwater at the same time . 在水下远距离和高频调制不能共存。
Through two - fluid and two - time - scale approximation , the dominating equations , which show the non - linear coupling between high frequency modulational field and the density disturbance of electrons and ions , are obtained 这组方程描述了高频调制场和电子、离子密度低频扰动之间的非线性耦合。
This paper is devoted to a detailed investigation of non - steady interaction between the moving body and plasma in compression region , whose dominating equations are obtained and whose phenomena are simulated 文献[ 12 ]中采用双流体、双时标近似,得到了压缩区内高频调制场对带电粒子非稳态作用的控制方程。
That is to say , high frequency modulational field radiated from the antenna system of moving bodies influents the charge distribution in plasma , while the disturbance of the charge distribution influents the field conversely 也就是说,在压缩区内,飞行体天线辐射出的高频调制场,影响着等离子体中的电荷分布,而电荷分布的扰动又反过来影响场量。
Because of the complicacy of the circuit , all sorts of influencing factors , such as power and high frequency modulation etc . , are considered to strengthen the harmony and the noise - immunity of the system , while the printed circuit board is designed 由于电路复杂,在印刷电路板结构设计中,考虑了功率高频调制等各种因素的影响,以增强系统的协调性和抗干扰性。
高频: high frequency调制: mingle; toss; lard; modulate ...高频调制器: high-frequency modulator高频调湿: high frequency conditioning高频调谐器: high-frequency tuner往高频调谐: tuning upward摆频调制: wobble modulation低频调制: low frequency modulation; low-frequency modulation低载频调制: low carrier modulation调频调制: frequency modulation调频调制,调频: frequency modulation调频调制盘: fm reticle; frequency modulation reticle分频调制: frequencydivision modulation光频调制: ofm optical frequency modulation交频调制: psm pitch shift modulation扩频调制: spread spectrum modulation ssm脉频调制: pfm pulse frequency modulation射频调制器: radio frequency modulator; radio-frequency modulator; rf modulator声频调制: audio modulation; buzzer modulation时频调制: time frequency modulation; time-frequency modulation视频调制: video modulation视频调制器: video modulator双音频调制: two-tone modulation像频调制: image modulation移频调制: frequency shift modulation; shift frequency modulation; shift-frequency modulation