粒子

• Various family groupings help to unify the study of particles .
  按族分类有助于统一研究粒子。
• The particle is never to be found halfway between the walls .
  在两壁间的中点永远找不到粒子。
• V is the velocity after the gas particle rebounds from the wall .
  V是粒子从壁上弹开后的速度。
• The wave nature of the particle produces a bunching effect .
  粒子的波动性质产生了成群的效应。
• The finite size of real particles compounds the difficulty .
  实际粒子的有限大小增加了困难度。
• It is useful to classify all these particles into two groups .
  把所有粒子分成两大类是适当的。
• Another particle grouping is referred to as charge multiplets .
  粒子的另一分类叫做电荷多重态。
• Evaporated material can recondense, forming new particles .
  蒸发的物质能再凝结，形成新的粒子。
• Most of the alpha particles would go right through the foil .
  大多数粒子总是笔直地穿过簿箔。
• The particles require about a day to reach the earth .
  这些粒子需要大约一天的时间才能到达地球。