“directrix”的概念、定义、习题解题方法及翻译-物理辞典

单词	directrix
释义	directrix 1 A plane curve defining the base of a cone. 2 A straight line from which the distance to any point on a conic is in a constant ratio to the distance from that point to the focus.
随便看	acceleration acceleration of free fall accelerator acceptor acceptor levels accommodation accretion disc accumulator achromatic lens acoustics acoustoelectronic devices actinic radiation actinium actinium series actinoid contraction actinometer action at a distance action potential action spectrum activation analysis active device activity additive process adiabatic approximation adiabatic demagnetization

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。