新型钻气孔机用于全自动造型线，设计采用自上而下、群钻气孔方式。该设计已获得国家专利。
Designed with a form as from top to bottom and group drilling set, a new type of drilling machine for air hole for automatic molding line has been awarded a national patent.
改造后的钻井帽先后用于旅大油田群2座平台的钻、完井作业，有效地降低了开发成本。
The modified drilling cap was used in the drilling and completion on 2 platforms in the cluster of LD oil fields, as a result that the development cost has been reduce effectively.
戴卓群：一种内心的需要，开始往新媒体领域里面钻了。
Dai: Out of some kind of inner need, you began to move into the field of new media.
试验结果表明：自攻自钻螺钉群连接件具有“群体折减效应”。
The destructive mechanism of self-drilling screws connection is recorded in the test.
试验结果表明：自攻自钻螺钉群连接件具有“群体折减效应”。
The destructive mechanism of self-drilling screws connection is recorded in the test.
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