This paper gets the frequency stability of a sine wave using a digital method. 摘要本文實(shí)現了利用數字方法計算正弦波的頻率穩定度。
Indeed, the current secular swing is much longer than any previous wave. 當前的長(cháng)期擺幅確實(shí)比以往任何時(shí)期的波幅都長(cháng)得多。
The curve of the relation between the amplitude of the ultrasonic wave and the excitation current of the electromagnetic field was obtained by experiments. 為此設計了確定最佳磁化強的試驗方案，通過(guò)試驗得到超聲波幅值隨電磁場(chǎng)激勵電流的變化曲線(xiàn)。
