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- ray tracking program 光线追踪程序
- Based on Fermat Theory,this paper sets up the differential equation of the ray track in the atmosphere,and explains the mirage phenomenon. 利用费马原理建立了大气中光线轨迹的微分方程 ,并解释了“空中绿洲”这一光学现象。
- Based on the atmospheric transmission model, through the actual ray track, the zenith angle is revised, which is a complicated function with launch angle and altitude. 摘要基于大气传输模型，采用光线传输的实际轨迹对天顶角进行修正处理，得出天顶角随发射角和传输高度的变化复杂函数。
- Pacific Ocean Shelf Tracking Program, 太平洋板块跟踪计划
- Electronic Satellite Tracking Program 电子卫星跟踪计划
- Hypothetical Weapons Tracking Program 假想武器跟踪计划
- Individual Airplane Tracking Program 单个飞机跟踪计划
- Single Aircraft Tracking Program 单机跟踪计划
- Visual Satellite Tracking Program 可视卫星跟踪计划
- parallel active tracking program 并行有效跟踪程序,并行主动跟踪程序
- A display device that uses a cathode ray tube. 一种使用阴极射线管的显示装置。
- Numerical Solution of the Ray Equation and the Ray Track 光线方程的数值解与光线追迹
- Radioactive ray is material thing. 放射线是实际的物质。
- A ray flower or the corolla of a ray flower. 舌状花舌状花或这种花的花冠
- Our pilotless rocket enters the track of the earth. 我们把一个无人驾驶的火箭送入了地球的轨道里。
- A ray of sunlight pierced the clouds. 一缕阳光穿透了云层。
- I was left without a ray of hope. 我连一线希望也没有了。
- This rough track will soon be a metalled road. 这条坑坑洼洼的路不久就要铺上碎石了。
- I'm trying to track down my old Aunt Maud. 我正试图寻找到我那年迈的婶婶莫德。
- Her visit brought a ray of sunshine into the children's lives. 她的来访给孩子们的生活带来了欢乐。
