摘要
本文从定量角度讨论了PS版表面砂目的定量表示方法,并从理论和实际两方面推断、论证了PS版表面砂目的理想值范围。
In this paper, The Expression metheod of presensitized plate grain is discussed from quantitative view. Ideal values of presensitized plate grain are inferred and proved from both theory and practice.
出处
《测绘科学技术学报》
1993年第2期51-56,共6页
Journal of Geomatics Science and Technology
关键词
PS版
砂目
粗糙度
理想值
PS plate, Plate grain, Coefficient of roughness, Ideal value
