这个新模型追踪了海王星轨道外数无数个微小物体的运行轨迹,它可以帮助天文学家计算出其他星系尘埃盘中行星的特性。
The new model, which tracks thousands of tiny particles beyond the orbit of Neptune, could help astronomers work out the properties of planets in other stars' dust disks.
过去数代人的职业轨迹很简单,大体上是一条直线,而现在,整个产业都会以惊人的速度扩张和收缩。
While previous generations' career tracks were simple and mostly linear, now entire industries expand and contract at alarming speed.
这种布朗粒子轨迹的分维是2,大大高于它的拓扑维数1。
Brown trajectory of the particles that fractal dimension is 2, much higher than its topological dimension 1.
仿真了各种不同轨道根数下的相对运动轨迹,与定性的理论分析进行比较,说明了轨道根数描述方法的优越性。
Simulation of the relative trajectories with various orbital elements and a qualitative theoretical analysis illustrate the advantages of the orbital elements method.
当转速比为无理数时,研磨轨迹的分布较致密。
When this rotating speed ratio is an irrational number, the distribution of grinding track becomes finer.
仿真系统模拟数担数控机床硬件插补原理,在计算机上动态地模拟出刀具运动轨迹,实现非实际切削过程中的数控代码验证。
The motion orbit of cutting-tool is simulated dynamically on the computer screen, with test and verification of NC program achieved in the non-real cutting process.
仿真系统模拟数担数控机床硬件插补原理,在计算机上动态地模拟出刀具运动轨迹,实现非实际切削过程中的数控代码验证。
The motion orbit of cutting-tool is simulated dynamically on the computer screen, with test and verification of NC program achieved in the non-real cutting process.
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