“dioptre”的概念、定义、习题解题方法及翻译-物理辞典

单词	dioptre
释义	dioptre A unit for expressing the power of a lens or mirror equal to the reciprocal of its focal length in metres. Thus a lens with a focal length of 0.5 metre has a power of 1/0.5 = 2 dioptres. The power of a converging lens is usually taken to be positive and that of a diverging lens negative. Because the power of a lens is a measure of its ability to cause a beam to converge, the dioptre is now sometimes called the radian per metre
随便看	c.g.s. units cadmium cell caesium clock Cahn-Hilliard model calculus californium caloric theory calorie Calorie calorific value calorimeter calx camera Canada balsam canal rays candela candle power capacitance capacitor capacitor microphone capillarity capillary capture carat carbon cycle

物理辞典收录了3346条物理词条，基本涵盖了常用物理知识及物理英语单词词组的翻译及用法，是物理学习的有利工具。