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。
I bumped my robot’s head on a low overhang because I overestimated the headroom, and it tipped over.
有一次，我过高的估计了机器人的头上空间，结果它的头撞到了一个较低的门廊并翻倒了。
(It's amazing how quickly my one-year-old son stops crying after I kiss the spot where he's bumped his head).
你会惊讶于我的一个吻的止痛速度，我一岁的的儿子撞到了脑袋，我亲了他一下，他立马就不哭了。
For example, if you jumped so high that you bumped your head, you could say, "I literally hit the ceiling."
打个比方，你跳得太高了，碰到了自己的头，你可能会说，“我差一点碰穿了屋顶。”
And the watermelon bumped my head!
西瓜撞到了我的头！
While cleaning out the cellar, John bumped his head on a beam.
在清理地下室时，约翰的头碰在横粱上。
I noticed when I took my first step inside . I bumped my head on the doorframe .
我刚踏进第一步时就领教了，我一头撞在了门框上。
My head bumped against the doorframe.
我的头磕在了门框上。
Towser closed his eyes and bumped his head back against the rough wood of the paddock door.
Towser闭上眼睛，把头向后一仰，敲在了这粗糙的木门上。
He bumped into a wall and a swelling appeared immediately on his head.
他把头磕在了墙上，头上起了一个鼓包。
He bumped into a wall and a swelling appeared immediately on his head.
他把头磕在了墙上，头上起了一个鼓包。
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