光学相机 » optical camera 泄油孔 » Drainage holes 战争期间，我受了很多苦。我用日记记下了自己的经历，以便老了以后能够牢记 » During the war, I suffered a lot.
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check valve drainage holes 逆止式排水孔
densely distributed drainage holes 密集排水孔幕
burr holes irrigation and drainage 钻孔冲洗引流术
cross drainage drilling holes 穿层抽放钻孔
High-level holes gas drainage 高位孔瓦斯抽放
Mainly expatiate on the drainage substructure for simulating drainage holes, and plane element model for the RCC intervals. At the same time the author expounds the method for accounting seepage flow accurately and quantitatively.2.
主要是精确模拟渗流场中众多排水孔渗控作用的排水子结构法，以及模拟坝体混凝土中那些特殊层面和缝面的渗流特性和渗流作用的缝面无厚度平面单元法，同时还阐述了计算渗流场渗流量的等效节点流量法等。
参考来源 - 特高碾压混凝土重力坝渗流特性及渗控措施研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Storage containers should have LIDS and drainage holes in the bottom.
垃圾存放的容器应该有盖子，在底部应有排水孔。
The area between the grooves, the ribs, supports the filter cloth and keeps it from filling the drainage holes.
凹槽中间的区域以及突起处支撑滤布并不让它堵住排水孔。
These belts have the entire carcass removed from exposed areas, usually around the drainage holes and often the edges of the belt.
带子可将整个构架从外露区域中拆除，通常在排水孔附近或带子边缘。
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