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。
2
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。
3
In this paper, a fast noiseless coding technique for binary images is proposed. This technique makes use of the geometric features of images.