This paper introduces the use, construction, wonk principle and using effect on the air noiseless filter of combined type.

本文介绍组合式空气消声过滤器的用途、结构、工作原理和使用效果。

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This paper puts forward a design calculating method for the determination of the contact molded lines of noiseless rocker convex-rings, which is of referential value to whom it may concern.

对无声摇臂凸环的接触型线的确定提出一种设计计算方法，供有关人士参考。

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In this paper, a fast noiseless coding technique for binary images is proposed. This technique makes use of the geometric features of images.

本文利用图象的几何特征，提出了一种二值图象无失真快速编码算法。

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