1) porous permeable bed
孔状可渗床面
1.
The no-slip condition at solid boundary is not satisfied,thereby the flow structure will be greatly changed,in this paper,based on the physical phenomena observed in flume experiments and theoretical analysis of the law of flow,Some formulae of velocity distribution and resistance for flow on porous permeable bed are obtained,and they are verified with some experimental data.
本文根据输沙试验中观察到的物理现象,建立了这种流动的物理图形,并从理论上分析了这类流动的规律,得到了孔状可渗床面流动的速度分布和阻力计算公式,最后用实验资料对所得成果进行了初步验证。
2) permeable bed
可渗床
3) frogface
蛙状面孔
5) boring and facing machine
镗孔车端面机床
6) single coordinate porous drill
单面多孔钻床
1.
Through the design of single coordinate porous drill,the drill is used processing gear boxs.
通过设计单面多孔钻床对齿轮室进行加工,该钻床具有高效、快速、便捷等特点。
补充资料：渗渗
1.寒冷貌。 2.指因害怕而产生发冷的感觉。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条