how much flow rate now?
现在流速是多少？。In the sewer design it is often necessary to determine the flow discharge and velocity under the partially filled condition.
排水管道设计中，常需要计算某一充满度下非满流的流量及流速。The opposite effect happens on the other side of the ball, where the air travels slower relative to the centre of the ball.
相反的作用发生在球的另一侧（空气流速较慢）。The signal processor further determines the slope of at least a portion of the convective ridge to determine the flow velocity of the fluid.
该信号处理器还确定该对流脊的至少一部分的斜率以确定流体的流速。The dimensions of these bubbles can be controlled simply by changing the velocity of the airflow across the surface.
这些气泡的结构可以通过改变空气在表面的流速来控制。You do not try to resist or slow the flow of any of those forces.
你不再尝试着去反抗或控制这些能量的流速The carrier gas is often store in a steel cylinder with pressure and flow regulators.
载气常常装在带压力和流速调节器的不锈钢瓶里。The flow of the surrounding medium was assumed to be potential and the basic flow is parallel flow with a constant velocity.
假设环境介质的运动为势流运动，基态射流为流速恒定的平行流。With an increase in flow rate, particles move apart and a few are seen to vibrate and move about in restricted regions.
随着流速的增加，颗粒互相离开，并可看到有少量的颗粒在一定的区间内进行振动和游动。