The new technologies of mass dissemination could reach large numbers of people with unprecedented speed and efficiency, but put control of the flow of information into the hands of a select few.
大规模传播的新技术以前所未有的速度和效率影响到大量的人，但是它却将信息流动的控制权交给少数被选拨出来的人手里。
Particularly necessary to point out that the liquid in the pump body mass flow rate of less than the circumference of the circumferential speed of the impeller.
需要特别指出的是，液体质点在泵体流道内的圆周速度小于叶轮的圆周速度。
At a constant gas flow rate, the overall volumetric mass transfer coefficients increase with the rotational speed.
在一定的转速范围内，气相流速不变时，吸收系数随转子转速的增加而增加。
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