... bump contact 块形连接，大面积接触 bumped head 冲压封头 bumper 缓冲器，减震器，消声器，阻尼器，减振器；脱模机；保险杠 ...
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bumped d head 冲压封头
Bumped your head 碰了头
I Bumped My Head 我撞破头
·2,447,543篇论文数据，部分数据来源于NoteExpress
In the fabrication of petrochemical plant (pressure vessel), the keys to quality control of bumped head are the diameter calculation of head blanking and its forming.
在石油化工设备压力容器制造中，对于整体冲压成形封头的质量控制关键是封头展开下料毛坯直径展开计算和冲压成形环节。
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Interestingly, Samsung last week bumped up the head of its mobile division, J.
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