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- A new signal processing method for Coriolis mass flowmeter is proposed, which is based on the recursive DTFT algorithm and considers the contribution of negative frequency. 基于DTFT递推算法,提出了一种计及负频率影响的科里奥利质量流量计信号处理方法。
- The positive and negative frequency expressions of quasi-monochromatic optical fields of a pulse in fiber-optic communication and the positive and negative frequency forms of Fourier transformations and nonlinear Schr?dinger (NLS) equations are discussed. 摘要讨论光通信中脉冲的准单色光光场的正负频表示，正负频形式的傅里叶变换，正负频形式的非线性薛定谔方程及它们之间的关系。
- Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation. 正频率是用逆时针旋转来产生，而负频率是用顺时针旋转来产生。
- The answer to my request was in the negative. 对我的请求的答复是否定的。
- His answer to my request was a negative. 我的请求遭到了他的拒绝。
- The tests for hepatitis were negative. 肝炎检查结果是阴性。
- He varied the transmission frequency. 他变换了无线电传送的频率。
- Their criticism was not negative. 他们的批评并不是负面的。
- Do a blow-up of this corner of the negative. (对某事的)详尽的报道。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- New signal processing method with negative frequency contribution for Coriolis mass flowmeter 计及负频率影响的科里奥利质量流量计信号处理方法
- Fatal accidents have decreased in frequency over recent years. 近年来死亡事故发生的频率已经下降。
- I have a negative opinion on the value of this idea. 我对这个主意持反对意见。
- We can often correlate age with frequency of illness. 年龄的大小往往与发病率有关。
- How many copies do you ask us to print off from the negative? ＂用那张底片，你要我们印几张像片？＂
- Accidents on that highway are happening with increasing frequency. 那条高速公路上车祸发生得越来越频繁。
- A way of producing the negative of a number by obtaining its complement. 一种通过求一个数的补码来得到该数的负数的方法。
- The positive or negative character of a proposition. 命题的性质命题的肯定或否定的性质
- An electron with a negative charge, as contrasted with a positron. 电子带有负电荷，与正电荷相反的电子
- He tuned his radio to the police frequency. 他把无线电调到警方的频率。
