单词	hypermetropia
释义	hypermetropia(hyperopia) Long-sightedness. A vision defect in which the lens of the eye is unable to accommodate sufficiently to throw the image of near objects onto the retina. It is caused usually by shortness of the eyeball rather than any fault in the lens system. The subject requires spectacles with converging lenses to bring the image from behind the retina back on to its surface. See illustration. Hypermetropia
随便看	Z boson Zeeman effect Zener diode zenith zepto- zero-point energy zeroth law of thermodynamics zetta- zinc chloride cell zino zodiac zodiacal light zone refining zoom lens zwitterion coherent units coinage metals coincidence circuit cold emission cold fusion Coleman-Gross theorem collective excitation collective oscillation collector colliding-beam experiments

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。