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。

She uses her mouth to blow the water to make a current, then her blow hole to break the current into a ring shape.

她会用嘴吹出一个气泡，然后用喷气孔将气泡吹成圆环。

In order to remove blow hole, the influence of jute fibre on permeability of coatings for LFC was investigated.

为了解决消失模铸造件气孔问题，研究了黄麻纤维对消失模铸造涂料透气性的影响。

The high ambient temperature and damp weather has harmful influence on the cupola melting that causes increase of blow hole defect.

梅雨季节高温潮湿天气对冲天炉熔炼带来不利影响，导致铸件气孔缺陷增加。

Method used to reduce blow hole defects of die castings include 4 aspects:melting, pattern die. parameters of die casting process, and stripping agent.

前言： 消除压铸件气孔的方法包含4个方面： 熔炼、 模具、压铸参数和分型剂。