粒子径迹
... particle diameter 颗粒直径，粒子直径 particle path 粒子径迹 particle shape 颗粒大小 ...
质点轨迹
... parameter 参数 particle path 质点轨迹 path line 迹线 ...
水质点轨迹
... 三相点轨迹 triple point path 水质点轨迹 particle path; water particle trajectory 旋回点轨迹 turning point locus ...
她询问的第一个粒子走过的路径最有可能是穿过迷宫的所有可能路径中最短的一条。
When a charged particle zips through the chamber, the vapour condenses into a trail of droplets showing the particle's path and, if the box is placed in a magnetic field, its electrical charge.当一个带电粒子快速穿越云室时，水汽会凝结形成一串小液滴，这样便标识出了该粒子的路径；若将容器置于一个磁场中，还能知道粒子所带电荷的性质。
However, even that calculation may not reflect how long the particle would take to cross the Pacific, since it would not likely cross the ocean in a direct path.然而，甚至计算也可能不会反映放射性微粒穿越太平洋所花的时间，因为它不可能径直穿越太平洋。
