The canopy transparency was strengthened to withstand a four - pound , 350 - knot bird strike 透明座舱盖被加强到可以经受一只四磅重的飞鸟以350节相对速度产生的撞击。
Two - phase flow system is a complex , nonlinear and dynamic system . there are interface effect and relative velocity between these two phases 两相流系统是一个复杂的非线性动态系统，相间存在着界面效应和相对速度。
And if the relative velocity of two inertial frames is constant , the compound pendulum in motion runs slower at a same factor than the resting one 两惯性系相对速度一定时，运动的复摆钟都比静止的钟慢了一个相同的因子。
Stars , in contrast , seldom collide , so they maintain a wider range of relative velocities and put up more resistance to passing waves 相反的，恒星甚少发生碰撞，因此它们能保持较大的相对速度，并且比较能够抵挡波动来袭。
Analyzing the velocity and acceleration of the follower based on the assur - group method and the inversion of the mechanism . 4 3 .以杆组分析方法为基础，结合转化机构原理及凸轮机构的相对速度理论进行从动件的速度和加速度分析。
It also analyses the structure , the testing principle of the radar , the method of measuring distance , relative velocity and azimuth 文中还研究了该雷达测试系统的测试原理，以及测量车间距离、两车相对速度和前车方位的方法。
There are interface effect and relative velocity between the two phases , so the measurement of two - phase flow parameters is more difficult 两相流系统是一个复杂的非线性动态系统，相间存在着相对速度和效应，使两相流参数检测的难度较大。
Therefore , we conclude that the real length or position of an object could never be made certain by observation when the object is in a high relative speed 因此我们得出结论：当被测物体具有相对速度或动量特别是在极高相对速度时时，永远无法
Under the same relative velocity , two vehicles with slower absolute velocities have more transient aerodynamic influence on each other during the overtaking process 在相同的相对速度下，绝对速度较低的两辆车在超车过程中产生的瞬态气动影响更大。
Based on the invariability of dynamic equation , the interrelation among recursive equation of relative displacement , velocity and acceleration are also obtained 通过动力方程的不变性说明了相对位移、相对速度和相对加速度三个递归公式的内在关系。
