In this paper, the structure and calculating principle of several counters for film length of roll coating plant are described, and the performance and use are analysed and summed here.
本文介绍了卷绕式真空镀膜机几种膜长计数装置的结构及计数原理，并分析、总结了各自的特点及应用场合。
In this article author puts emphasis upon the discussion about distribution regularity of roll flattening along the length of roll body and optimum roll-bending force, which is of certain value.
本文重点讨论轧辊弹性压扁沿辊身长度分布的规律及最佳弯辊力，有一定参考价值。
Overlap sheets of newspaper by about one third of their length and roll them into a tube.
将报纸一片一片重叠起来，折叠成它们原有长度的三分之一，将它们卷成管状。
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