长孔 meaning in Chinese
slot opening
slotted hole
Examples
- Perforated plate with round and elongated apertures
圆孔和长孔筛片 - The application of long - hole intubation grouting in wujia coal mine
长孔插管注浆法在伍家矿的运用 - Woven steel cloth with rectangual apertures for rice milling industry
稻谷加工工业用钢丝编织长孔筛网 - Construction technique of foam method for drilling long gas extraction hole
泡沫法施工瓦斯抽放长孔工艺 - Longwall and longhole blasting coal mining method for difficult mining seam
难采煤层巷道长壁长孔爆破采煤方法简介