H-D curve是什么意思

用法例句

Based on the theory of the photographic process and H-D curve,this paper analyses and studies the methods of improving the image quality of the dark zone in negative-positive system by increasing the exposure value combined with the enhancement of the development and printing processes;results were proved by running practical shooting work.

本文从摄影过程理论出发,以感光材料的感光特性曲线为工具对"负—正"系统中采取前期增加曝光量并和后期洗印工艺相结合来改善画面暗部影像质量的方法进行了分析和研究,并进行了相应的实拍验证。

Effects of short day length treatment on major traits of photosensitive hybrid rice combination;

短日处理对感光型杂交稻组合性状的影响

This article introduces the characteristics, application, usage and key points needing attention in production of the multipurpose Liquid photosensitive ink.

介绍了多功能液态感光油墨的性能、应用、使用方法及注意事项,同时对使用中的常见问题及解决办法进行了详细说明。

Preparation of photo-sensitive copolymer ultrafiltration membranes;

感光性丙烯腈共聚物超滤膜的制备

Synthesis of photosensitive conjugated polymer-solublepoly (p-phenylene);

感光性可溶共轭聚合物聚对苯的合成