Inside the metal head there's an accelerometer that measures the forces within the impact.

里面的金属头有一个加速计，其影响范围内的措施的力量。

youdao

The metal plate behind my head radiated heat.

我脑后的金属盘散发出热量。

《柯林斯英汉双解大词典》

Paiko threw himself into the back of the Land Rover, banging his head against the hard metal.

派克将自己扔到陆虎后车厢里，头倚着硬硬的铁皮。

youdao

I had my head in and was about to open the lantern, when my finger slid on a piece of metal and made a noise.

VOA: special.2009.05.16

Due to an explosion, a metal pipe went through his head like so.

由于一场爆炸,一根钢管刺穿了他的脑袋,就像这样

耶鲁公开课 - 心理学导论课程节选

Then I stood on our balcony, my hands gripping the cold metal balustrade above my head.

NEWYORKER: Naima

The Medicines and Healthcare products Regulatory Agency (MHRA) has issued new advice saying patients with these large head diameter metal-on-metal hips will need monitoring for the life-time of the implant.

BBC: Annual checks for patients with all-metal hips

It comes in two parts: there's an adjustable cradle that fixes the device to your head, and the computer itself is in a metal bar that curls around the side of your head.

BBC: Motorola unveils a computer that straps onto your head