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- ship noise standard 舰艇噪声标准
- EPA also enforces noise standards for trucks and airplanes. 环保局对卡车和飞机也规定了噪音标准。
- EMD is used here as a signal separation tool to separate the tow ship noise from the received signal. 本文尝试利用经验模式分解方法分离出水听器接收信号中的拖船干扰噪声，从而达到消除干扰的目的。
- Multipath of the towing ship noise limits the performance of adaptive interference can-celing (AIC) which utilizes the fixed beam as a reference input. 拖曳线列阵声纳中,拖船噪声常常是影响声纳性能的重要因素之一。
- Noise that electricity stove produce at the steel-making up to 130dB (A ), far exceed the national requirement about 85dB (A ) of the ambient noise standard , has already brought danger to the operate workers, and also polluted the environment seriously. 电炉炼钢时产生的噪声最高达130dB(A),远远超过国家有关环境噪声标准的85dB(A)的要求,既给操作工人带来危害,又严重污染了环境。
- In addition, the envelope of ship noise waveform can be remodulated utilizing Hubert transform, and the spectrum components with line rotation frequency of propeller shaft are extracted effectively by bispectrum analysis. 另外，对于通过Hilbert变换解出的舰船辐射噪声包络进行双谱分析，有效地提取出了舰船轴频线谱。
- Tow ship noise is a nonstationary process with several characteristic properties, such as multi-path and angle dispersion, which greatly add the difficulty to cancel or suppress the noise. 拖曳式线列阵声纳的拖船噪声具有多途角扩展等特点，并且是一个非平稳过程，使得对该噪声的消除或抑制是一大难点。
- There is no noise elimination measure and noise standards to AHU, air supply unit, exhaust fans. 空调机组、新风机组、排风机均无消声措施及噪声指标。
- adaptive areas of noise standard 噪声标准适用区
- rest noise standard deviation ( RSTD ) 剩余噪声标准偏差
- The lifeboat went out to a ship in distress. 救生船去救一艘遇险的船只。
- A New Method for Feature Extraction in Ship Noise 基于多重分形的舰船噪声特征提取
- Novel method for tow ship noise cancelling 拖船干扰抵消的一种新方法研究
- The ship steamed into the harbor. 船驶入了港湾。
- The ship was loaded with cargo fore and aft. 这条船从船头到船尾装满了货物。
- A loud noise from the street diverted my attention. 街上一阵喧闹声转移了我的注意力。
- The ship beat back against a monsoon. 船逆着季风艰难地行驶。
- The noise awoke her from her revery. 这声音把我她从沉思中惊醒。
- The ship kept the buoy on her off side. 这条船在浮标的左边。
- This article qualitative introduced the use tree planting method, during beautified environment, reduces the ships noise to the environment pollution, expanded the tree planting potency. 摘要针对船舶噪音与居住环境的矛盾逐渐突出，提出了利用绿化手段，降低船舶噪音对环境的污染，扩展了绿化的效能。
