现行CR检测标准中涉及多个有关分辨力和分辨率的术语，如分辨力、分辨率、图像分辨率、系统分辨率和扫描分辨率等，容易混淆。通过理论分析、试验和实际应用几个方面入手，阐明其间的内在联系和区别，以为从业人员学习与应用CR检测技术提供帮助。

There are many terms related to resolution and resolution ratio in current CR testing standards, such as resolution, resolution ratio, image resolution ratio, system resolution ratio and scanning resolution ratio, which are easy to cause confusion and misunderstanding. This paper intends to clarify the internal relationship and difference between them through theoretical analysis, experiments and practical application, so as to provide some help for the theoretical study of digital ray practitioners and the application of CR testing technology.