velocity

• Sometimes temporal fluctuation may take place in the local velocity .
  有时，在局部速度中可能出现瞬时脉动。
• At high gas velocities the circulation of solids becomes appreciable .
  在高气速时，固体颗粒循环变得显著了。
• Note that it does not have the same direction as the velocity vector .
  要注意它的方向与速度矢量的方向不同。
• The number and size of these bubbles increase with rise in gas velocity .
  气泡数及其大小随气速的加大而增加。
• The atomic particles resist being accelerated past the velocity of light .
  这些原子粒子无法被加快到超过光速。
• Seismic velocity can occasionally be affected by porosity and temperature .
  孔隙率和温度有时也能影响地震波速。
• Normally the shear velocity is about half of the compressional velocity .
  一般地说横波速度大约是纵波速度的一半。
• The velocity of the center of mass is constant in the absence of external forces .
  在无外力时，质心的速度是常量。
• He incorrectly used the product of velocity and weight to define momentum .
  他错误地将动量定义为速度与重量的乘积。
• The propeller can follow the wind velocity closely during high-speed gusts .
  螺旋桨在有高速狂风时能紧紧地追随风速。