18. How to sell and purchase the electric power, how to carry on electrical charge accounting, involve many techniques, economic problems.
发、输、配、用电四方如何销售与购买电能、如何进行电费核算，涉及许多技术、经济问题。
youdao
19. For each particle there should be a corresponding antiparticle with exactly the same mass and lifetime but with an opposite electrical charge.
每个粒子都应该对应着一个反粒子，它们的质量和寿命完全相同，但带有相反的电荷。
youdao
20. Models predicted that electrical charge should be limited to the top and bottom of any ash plume, which is often the site of spectacular lightning.
根据以前的模型，电荷仅存在于火山灰羽状物的顶部和低端，那里时常发生华丽的闪电。
youdao
21. Verdi I's music burned through the audience like an electricalcharge, and many remember it as one of the most powerful events of their lives.
威尔第的音乐像电一般顷刻燃遍听众。许多人迄今仍记得那是他们一生中所遇到的最有震撼力的事件之一。
youdao
22. A proton has an electrical charge that is equal to that of the electron, but the proton weighs almost two thousand times as much as the electron.
质子有一个电荷，与电子的电荷相等，但是，质子的重量几乎是电子的两千倍。
youdao
23. Some people even show allergic reactions to technology, finding it difficult to live around devices that emit too much magnetic and electrical charge.
有一些人甚至对电子产品有过敏反应，当他周边有发出很大磁场或者电荷的电子设备时就会坐立难安。
youdao
24. It works by applying an electrical charge to millions of tiny black particles, causing them to freeze in a pattern of letters or grayscale images.
它的原理是对上百万个黑色小微粒通电，让它们冻结排列成字符或者灰度图片。
youdao
25. It works by applying an electrical charge to millions of tiny black particles, causing them to freeze in a pattern of letters or grayscale images.
