1)density-exposure curve,宓度曝光量曲线2)density versus log-exposure curve,密度对曝光量对数曲线3)exposure curve,曝光曲线4)exposure chart,曝光曲线图5)Hurter-Driffield(H-D) curve,曝光特性曲线6)technical chart,技术曲线，曝光曲线
用法和例句
The principle and method of plotting new kUP (tube voltage)T(thickness of specimen)F(focal distance) exposure curves for the use of radiographic examination of Ti with focal distances of 0412 m are described.