英语词汇ac 200怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	ac 200
释义	Examples: discriminant (e.g. b^2-4ac in the formula for the root of a quadratic equation)— 判别式 inverter, device that converts AC electricity DC and vice versa— 反用换流器
随便看	earthning Earth observation Earth observation Earth observation data Earth observation data Earth observation programme Earth observation Programme Earth observation satellite Earth observation satellite Earth observation science Earth Observation science Earth observation services Earth observation services Earth Observing Satellites Earth Observing Satellites earth opening Earth opening Earth orbit Earth orbit Earth-orbiting Earth-orbiting Earth-orbitting Earth-orbitting earth pigments earth pin

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

discriminant (e.g. b^2-4ac in the formula for the root of a quadratic equation)—