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。
She bumped her head against a low branch.
她的头撞到一根低矮的树枝上。
The room was dark and I bumped (my head) against [on] the door.
屋子里很黑，我(的头)碰到了门上。
He bumped his head on the low beams.
他的头撞到了低矮的横梁上。
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。
我撞伤了头。
One fell off and bumped his head.
一只掉下床，撞伤了脑袋。
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！
I bumped my head on the shelf.
我的头撞到了架子上。
I bumped my head into a low stone.
我的头撞到了一块石头。
I bumped my head on the low beam.
我的头撞到低梁上了。
我吧头碰在了桌子上。
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。
And then I fell off the bed and I bumped my head.
然后我掉下床撞到了我的头。
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。
One fell off and bumped his head.
一只摔下来，撞了头。
One little monkeys jumping on the bed, One fell off and bumped his head.
一只小猴子跳到床上，一只摔了下去，并且把他的头撞肿了。
One fell off and bumped his head.
他摔下来，撞到头。
The little boy bumped his head on the table.
小男孩的头撞到了桌子上。
I've just bumped into the head teacher.
我已经碰见校长了。
I've just bumped into the head teacher.
我已经碰见校长了。
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