更新时间：2024-04-25 09:18:13作者：留学之路
The main features of the fissure type nitrogen blow hole and its formation mechanism was described.
叙述灰铸铁件裂隙状氮气孔的主要特征、形成机理.
来源：互联网The whale expelled water from blow hole.
那鲸鱼从鼻孔喷出水来.
来源：互联网Mo Chuan Lo sharp as a blow hole, hum sounds natural, vigorous low.
磨穿螺尖作为吹孔, 发音呜呜然, 浑厚低沉.
来源：互联网Proper pouring process would avoid molten iron to be contaminated and reduce blow-hole defect.
正确的浇注工艺能防止铁液受到污染,减少铸件产生的气孔.
来源：互联网This paper investigate improve process of melting bronze coat and re movement of blow hole.
因此,就采用小座炉熔炼紫铜外套如何改进工艺操作、攻克紫铜外套气孔难关作一初探.
来源：互联网Blow-hole colostomies were closed on postoperative day 10, the investigators say.
研究者报道小切口结肠造瘘口在术后10日闭合.
来源：互联网The whale expelled water from his blow hole.
鲸鱼从鼻孔排水.
来源：互联网