gross blowhole是什么意思

网络释义

1)gross blowhole,大气泡(铸疵)2)blister,面泡(铸疵)3)blow-hole,气孔(铸疵)4)inner swell,内模胀大(铸疵)5)hydrogen brittleness of copper,铜气脆性(铸疵)6)oxidized blowhole,氧化气孔(铸疵)