查询词典 regular tetrahedron

On the basis of shock wave characteristic of the supersonic projectile and the detailed analysis of measured datas,a method of decomposing and reconstructing the trajectory shock wave signal and muzzle blast wave signal is proposed and the characteristic parameters for positioning sound source and calculating trajectory vector with regular tetrahedron detection array are extracted.

根据空气动力学原理，在阐述超音速弹丸的弹道波特性的基础上，通过详细分析实测的声信号，提出了弹道波信号和枪口冲击波信号的小波分解和重构方法，提取了利用正四面体探测基阵进行声源定位和弹道矢量计算的特征参数，获得了满意的实验结果。

Magnetospheric MultiScale mission design needs spacecrafts flying in a regular tetrahedron configuration about the apogee of an elliptical orbit.

Magnetospheric MultiScale任务利用椭圆轨道远地点附近的正四面体航天器编队，协同完成对地球磁层结构和动力学特性的测量和分析。

Diamonds Time Limit: 1.0 second Memory Limit: 32 MB Sasha is lucky to have a diamond in the form of a regular tetrahedron.

萨拉很幸运拥有一个四面体的钻石。

Accurate station keeping is demonstrated in experiments with our four-DOF underwater vehicle and the observed target which is a regular tetrahedron with four ball-like culminations in our indoor water tank.

悬停定位具有两个特点：首先，它是一种动力定位，即在定位传感器的引导下，依靠自身的动力，在控制系统的指挥下抵抗外界扰动而保持某一位姿；其二，它是一种局部定位，水下机器人相对作业目标的运动空间范围一般不会很大。

By assuming the seeds in the vibration plate were distributed with regular tetrahedron,the influences of seeds lay thickness,n,negative differential pressure,Δp,seeds gap coefficient,λ,nozzle diameter, d_k,on suction force values were analyzed.

在此基础上，通过假设种群在振动种盘内呈正四面体空间分布，分析了种群层数n、负压差Δp、间隙系数λ、吸孔直径d_k对种子受力的影响，揭示振动和负压吸种机理。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。