In experimenting we find out that sound travels with different velocities through different substances.在实验中,我们发现声音以不同的速度通过不同的物质而传播.A gas in thermal equilibrium has particles of all velocities.处于热平衡的气体,其粒子有一切速度.At high ga...

velocities的音标：...

n.（尤指3048米/秒以上的）超速，极高速( hypervelocity的名词复数 )...

hypervelocities的音标：...

n.速度( velocity的名词复数 )，高速，快速...

The velocities are independent of hydrostatic pressures.速度与流体静压力无关.The momentum of the particles was deduced from meteoritic velocities.粒子的冲量可以从陨石速度推导出来.In experimenting we find out that sound travels with different velo...