In addition to being heavier than normal completion components, the wall of a blast joint is often treated to resist the jetting action that may result in the proximity of the perforations.
防冲蚀短管除了壁厚大于正常完井部件外，其管壁通常经过处理，以阻止冲蚀作用的发生，因而不会引起射孔孔眼的接近。
AIM to establish standard animal model of blast injuries in maxillofacial region and to study the injury of articular disc of temporomandibular joint of the wounded side.
目的建立标准的颌面部爆炸伤动物模型，并研究颞颌关节盘的损伤特点。
A new rehabilitating technique using blast expanded joint method is adopted after experimental test, which gains ideal results.
通过试验，采用爆炸胀接法修复，取得了理想的效果。
This study carried out analysis of its disadvantages for joint constructor tank after used screw blast aeration technology.
对合建式曝气池采用螺旋鼓风曝气技术后存在的问题进行了分析。
The paper compares the pipe joint method of 3-branches with that of globe on the roof of blast furnace, and expounds the practicability of globe joint.
比较了高炉炉顶煤气管三岔管式连接和球式连接的特点，阐明了球式连接的实用性。
The paper compares the pipe joint method of 3-branches with that of globe on the roof of blast furnace, and expounds the practicability of globe joint.
比较了高炉炉顶煤气管三岔管式连接和球式连接的特点，阐明了球式连接的实用性。
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