Screw compression refrigeration unit is one kind of large scale compression refrigerator with characteristics of big refrigeration capacity, small floor area and high efficiency.

螺杆压缩制冷机是一种制冷能力大、占地面积小、效率高的大型制冷机。

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The experimental results show the proposed algorithm with high robustness against common audio signal processing, MP3 compression, time-scale modification and random cropping.

实验证明该算法具有较强的鲁棒性，可以抵抗普通的信号处理、MP3压缩、时间尺度修改和随机裁剪等攻击。

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While wavelet transform is suitable in image compression due to its multi-resolution and multi-scale analysis property, and is used in the standards of image compression.

小波变换具有多分辨率和多尺度特性，特别适合于二维图像信号的处理，目前已应用在静止图像的压缩标准中。

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Our technologies and services include: surface and subsea drilling and production, monitoring and diagnostics, measurement and controls, large-scale LNG, pipeline compression and inspection, well site and industrial power generation, technologies for the refining and petrochemical industries, and modular CNG and LNG units for transportation sectors.

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