Density of electrostatic charge
[电] 静电荷密度
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
a. 静电的, 静电学的\\n[医] 静电的
🗣️ 情景例句
Twenty-one inches.
二十一英尺。
One should eat to live, not live to eat.
人为生而食，非为食而生。
Libraries made education possible, and education in its turn added to libraries: the growth of knowledge followed a kind of compound interest law, which was greatly enhanced by the invention of printing.
藏书使教育成为可能，而教育反过来又丰富了藏书，因为知识的增长遵循着一种“滚雪球”的规律。印刷术的发明又大大提高了知识增长的速度。