质点: mass point; material particl ...轨迹: locus; trajectory; trail; tr ...水质点轨迹: particle path; water particle trajectory点轨迹: locus of points反射点轨迹: reflection-point trajectory互切点轨迹: tac-locus尖点轨迹: cusp locus; cuspidal locus节点轨迹: joint trajectory; node trajectory; node-locus结点轨迹: nodal locus; node locus啮合点轨迹: path of action三相点轨迹: triple point path旋回点轨迹: turning point locus光线交点轨迹: ray intercept curve界面反射点轨迹: subsurface trace质点运动轨迹: particle path; path of particlea-质点: a-particle质点: mass point; material particle; material point; point particle; point unit; [力学] particle轨迹: 1.[数学] (某点在空间移动的路线) locus; trajectory; trail; travel; path; way; [电子学] trace; line; pathway2.[天文学] (天体在宇宙间运行的路线) orbit 我们可以画出地球绕太阳运行的轨迹。 we can draw the earth's orbit round the sun 起点轨段: start track终点轨段: end trackα质点: alpha particle; helionβ质点: beta particles本质点: essential point畴质点: domain particle地质点: point of observation geologic observation point; point of observation, geologic observation point
