净孔 meaning in English
clear opening
Examples
- Aerospace ; inserts for composite materials , with clearance hole , aluminium alloy
航空航天.复合材料用带净孔的铝合金嵌件 - Aerospace ; inserts for composite materials , with clearance hole , corrosion resisting steel
航空航天.复合材料用的不锈钢制带净孔的嵌件