... 顶结节 parietal protuberance 顶孔 parietal emissary foramen 顶内沟 intraparietal sulcus ...
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该项技术去掉顶孔绳,代之以高强编织带孔口圈。
Conventional vent lines are removed and replaced with a vent loop of high strength polymer textile braids.
文章介绍了美国近年来研究的降落伞中的一项新技术—圆形降落伞顶孔的孔口圈技术。
This paper presents a new vent loop technology for annular parachutes developed in USA in recent years.
有些人说它戴一顶草帽,是为了隐藏呼吸孔和突出的前额。
Some say it wears a hat to hide its blowhole and its bulbous forehead.
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