长孔的英文

• slot opening
• slotted hole

• 长:    older; elder; senior
• 孔:    hole; opening; aperture
• 长孔焊:    slot weld
• 长孔筛:    sieve slotted-hole
• 长孔钻:    slotting auger

例句与用法

1. Perforated plate with round and elongated apertures
   圆孔和长孔筛片
2. 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
3. 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
4. Construction technique of foam method for drilling long gas extraction hole
   泡沫法施工瓦斯抽放长孔工艺
5. 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