... perforated metal 冲孔网；穿孔金属板 perforated pipe 多孔管；穿孔管 perforated brick 多孔砖；散气砖；多孔空心砖 ...
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多孔管水流流态的变化对水头损失计算的影响 关键词 多孔管 水头损失 水流流态 计算机模拟 [gap=694]Key words perforated pipe; head losses; the type of flow; computer model
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perforated pipe distributor 喷淋器多孔管分布器 ; 多孔管式分配器
shop-perforated pipe 预制滤管 ; 在工厂打孔的管子
perforated pipe completion 贯眼完成法 ; 贯眼完成
perforated pipe base 带眼中心管
concrete perforated pipe 混凝土穿孔管
HDPE perforated pipe HDPE穿孔管 ; 穿孔管
perforated-pipe distributor 多孔板
Perforated Pipe Joints 多孔管接头
The sonic field transmission matrixes of perforated absorbent pipe is given after the transmission performance of perforated pipe is studied.
本文通过声波在穿孔声管中传播特性的研究，导出了声波在穿孔声管中传播的声场传递矩阵。
The results show that choosing perforated pipe with suitable structure and putting it into the thermosyphon can enhance the heat transfer effect.
结果表明，合理选择分流管的结构尺寸，将其置于热虹吸管内，可以起到强化沸腾换热的效果。
Compared with perforated pipe distributor, perforated weir-riser distributor has smaller wall flow, bigger operation elasticity and simpler structure, it is easy to install.
该分布器与原来的多孔直管式分布器比较，具有壁流量小，操作弹性大的优点，而且此分布器结构简单，安装方便。
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