并且证明悬料区的总压降可以近似等于立管的压降。

The total pressure drop in hung-up regime is approximately equal to that in the standpipe.

youdao

这里，△r应该是近似等于。。。,它的方向是轨道的切线方向。

And now, delta r should be essentially roughly equal to, well, its direction will be tangent to the trajectory.

youdao

最佳管距对应的管束水力当量直径近似等于池内沸腾时的气泡脱离直径。

The optimum tube spacing equals approximately to the departure diameter of the bubbles during a pool boiling.

youdao

So delta u of reaction is approximately equal T to negative Cv for the calorimeter times delta T.

所以反应的ΔU近似等于,负的量热计的Cv乘以Δ

麻省理工公开课 - 热力学与动力学课程节选

So what happens then we're going to use the ideal gas law. So it's approximately delta u plus delta nRT. That's a constant. That's a constant.

我们现在要应用理想气体物态方程,这个近似等于ΔU加上Δ,这是常数，这是常数。

麻省理工公开课 - 热力学与动力学课程节选