vapour velocity的意思|示意

The Model AS-2 is designed to check velocity and direction of air flow continuously with a smoke tube (No. 301) which reacts with vapour in the air and generates white smoke.

该型号AS - 2的目的是检查速度和方向的空气流动的烟管（301）的反应与空气中的蒸汽并产生白烟不断。

When the radial component of the vapour velocity and the axial variation of the vapour temperature were neglected, the error of the sonic limit is within 10 per cent.

结果表明：忽略加热段内蒸汽温度的轴向变化及蒸汽流动的径向变化，钠热管声速限与实际误差在10%以内。 理论与实验较为吻合。

The model includes solid velocity, space grade of saturation with vapour density and space grade of porous pressure in concrete multiphase system.

考虑了混凝土多相系统中固体速度、饱和度乘蒸汽密度的空间梯度和孔隙压力空间梯度；