... standard frequency service 标准频率业务 standard frequency signal 标准频率信号 standard frequency station 标准频率电台 ...
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标准输入信号频率 standard input-signal frequency
标准频率和时间信号 Standard frequencies and time signals
标准时间和频率的信号 STFS
电视信号中的标准频率信号是受原子钟控制的高稳定度、高准确度的信号。
The standard frequency in television signals is a signal with high stability and accuracy, controlled by the atomic clock.
该方法从红外成像系统信号传递方程出发，模拟生成不同空间频率、辐射温度的标准四周期矩形样条；
Standard four periodical rectangular patterns with typical spatial frequency and radiometric temperature were generated according to signal transfer equation.
鉴别器，鉴频器：一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异。
Discriminator: a device that converts a property of an input signal such as frequency or phase into an amplitude variation depending on how the signal differs from a standard or reference signal.
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