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。
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。
In need of special is that the liquid particles in the body within the flow rate is less than the circumference of a circle impeller speed.
叶片高度的增长，使沿叶高的等功设计已经不能充分发挥长叶片高圆周速度部分的做功能力。
The increment of blade length makes the equal work distribution along the blade length be unable to dig the potential power of long blade at the part with high circumferential velocity.
不要把沿圆周的切向加速度与向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with centripetal acceleration.
这是导致速度，沿着圆周改变的因素。
This is the one that makes the speed change along the circumference.
在纯滚动情况下，Q的速度，和圆周的速度，如果你们看得到-，是相同的。
When we have pure roll, the velocity of this point Q, and the velocity of the circumference, - if you can read that — are the same.
但是别把这个切向加速度，它是沿着圆周的，和向心加速度混淆。
Do not confuse ever the tangential acceleration, which is along the circumference, with a centripetal acceleration.
先前在讲行星时,我们讨论过这个，我们讨论的是,匀速圆周运动，而且我们评估了,向心加速度。
We have discussed that earlier when we dealt with the planets, and we dealt with uniform circular motions, and we evaluated the centripetal acceleration.
爱因斯坦电梯；炮火射程；匀加速度和圆周运动的量纲分析。
Einstein's elevator; Artillery range; Uniform acceleration and circular motion using dimensional analysis.
试验表明，蜗壳内部液体绝对速度的圆周分速度比径向分速度大一个数量级；
The results show that magnitude of tangential velocity component of absolute velocity is larger one order than that of radial component.
其蜗形部分不采用速度矩为常数的假设，固定导叶的形状沿圆周是变化的，以便与来流相适应；固定导叶与活动导叶两环列叶栅之间的相对位置是由优化计算确定的。
The hypothesis of constant velocity moment was not used for the spiral parts design, and the shapes of stay vanes are different along the circumference so that they can adapt their...
还对锯机设计中主要性能参数驱动功率和锯片圆周线速度问题进行了较深入的讨论。
The saw cutting power and the circle line speed of saw web are also discussed.
由于电机转速很低，为了充分利用其圆周线速度，一般需要采用直径大而轴向长度短的结构，与传统高速电机的细长结构有很大区别。
The low speed machine usually has a short and fat structure in order to use effectively the rotating speed of the rotor, as contrasted with the long and thin structure of the high speed machine.
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
看过一简单、快速的演示圆周运动中力和加速度的变化吗？
Looking for a simple, quick demonstration of forces and acceleration in circle motion?
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