Particles bearing like charges tend to repel one another, whereas particles bearing unlike charges tend to attract one another.

 
  • 帶有相同電荷的粒子相互排斥,而帶有不同電荷的粒子則相互吸引。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan