降低划频每分钟3 ~ 8下，这样才能拥有长的，顺畅的，有滚动的划水。
Decreasing stroke rate by 3-8 strokes per minute to allow for a long, smooth, rolling stroke.
由于在国内尚无法得到长周期逐时温度参数，关于温频法气象参数的研究和应用相对缺乏。
Since the long term temperature records are not available in China, there is a lack of BIN weather data for study and application.
跳频同址干扰具有频率选择性，是典型的长脉冲响应干扰。
Frequency-selective frequency hopping(FH) cosite d interference is a typical long impulse response interference.
针对P码多普勒频移大、周期长的特点，本文探讨了缩短载频搜索范围的方法。
According to P-code features of large Doppler frequency shift and long code period, the method that shortens the scope of carrier frequency search is studied.
采用铜管和端面镀膜的光纤制作f - P传感器，白光光源经过腔长受温度调制的F - P传感器选频后，用平面光栅和线阵CCD实现光波波长的解调。
After frequency selecting when white light walks through the F-P sensor which cavity modulated by temperature, wavelength demodulating is realized with a plane grating and CCD.
SBR贴片式系列LED日光灯采用高亮度贴片式LED灯珠为光源，绿色环保、无频闪、寿命长、显色指数高、色温可选择范围宽。
XH-SBR SMD LED fluorescent light with high brightness SMD LED AS light source lamp beads , green , no flicker , long life , high color rendering index , color temperature optional wide range .
具有优良相关性，大线性复杂度，平衡性，长周期的伪随机序列广泛应用于CDMA系统，扩跳频通信系统。
Pseudo-random sequences with optimal properties such as correlation, high linear spans, balance and long period are widely used in CDMA system, spread spectrum and hopping communication systems.
增加激光谐振腔腔长是获得窄带宽的有效方法，但是使实现单频工作困难。
A longer laser resonator length is benefit for laser linewidth, but harmful for single-frequency operation.
由于盲信道估计算法复杂度高，收敛时间长且存在信号或符号的不确定问题，不适于在实际中应用，因此本文主要研究的是基于导频的信道估计。
Because of the high algorithm complexity, the slow convergence and the signal or symbol obscure problem of the blind channel estimation, it is not suitable in practical use.
由于盲信道估计算法复杂度高，收敛时间长且存在信号或符号的不确定问题，不适于在实际中应用，因此本文主要研究的是基于导频的信道估计。
Because of the high algorithm complexity, the slow convergence and the signal or symbol obscure problem of the blind channel estimation, it is not suitable in practical use.
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