Perforated plates correspond to heterogeneous media.
多孔板相当于均匀介质。
A packed bed of granular material sandwiched by two perforated plates, is a good distributor.
两块孔板中间填有一层颗粒物料，是一种很好的分布板。
Based on the numerical results, the curve-fitting expressions for the acoustic impedance of perforated plates with cross flow and grazing flow are obtained.
综合无流、有流情况下穿孔板声阻抗的近似公式，给出穿孔元件声阻抗新模型。
The structure and performance of perforated plates of non-uniform perforation are studied in a plastic column and the mass transfer efficiency of oxygen desorption is analysed.
用有机玻璃塔研究了非均匀穿流塔板的结构与性能，分析了氧解吸的传质效率。
Perforated 100% recyclable non - mercuric corten steel plates absorb most of the ultraviolet rays and decrease the energy load for cooling.
100%循环多孔无汞耐用钢板吸收大部分紫外线，降低能量荷载以达到内部降温的目的。
The application of hydrometallurgical processes which remove copper ion may recovery lots of metals in waste perforated anode and cathode plates.
采用置换除铜湿法工艺可从废旧正、负极穿孔钢带极片中回收多种金属。
The perforated steel plates are forming 3D pyramids reflecting the sky and the sun at every time in different angles and colored effects.
穿孔钢板形成的3D棱锥体从不同的角度反射着不同时间的天空和阳光，达到各种不同的效果。
In waste perforated anode and cathode plates, there are many noble metals and materials which will bring serious pollution to environment.
废旧正、负极穿孔钢带极片中即含有贵重金属，又含有严重污染环境的物质。
The complete metallic perforated plate heat exchanger is made of a lot of perforated copper plates alternated with stainless steel spacers, and piled up and welded each other.
全金属孔板叠层换热器是由铜制孔板和不锈钢隔片相间叠置，采用扩散焊工艺焊接而成。
The perforated steel plates are forming 3d pyramids reflecting the sky and the sun at every time in different angles and colored effects.
穿孔钢板构成了立体的锥形，每时每刻都以不同的角度反射天空和阳光，形成不同的颜色效果。
The perforated steel plates are forming 3d pyramids reflecting the sky and the sun at every time in different angles and colored effects.
穿孔钢板构成了立体的锥形，每时每刻都以不同的角度反射天空和阳光，形成不同的颜色效果。
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