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

High quality hard metal can be prepared by simple breaking and grinding from hard metal scrap without any chemical treatment.

采用该法，只须采用破碎和细磨，不经任何化学处理，就能高质量地回收利用废硬质合金。

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However, in some small engines, the cylinder walls are plated with chromium, a very hard metal, to reduce wall wear and lengthen their life.

而对于一些小型发动机，气缸壁面镀铬，铬是一种硬度非常高的金属，可减少气缸壁的磨损并延长使用寿命。

youdao

We slept on the hard ground, ate canned beans from cold metal plates and spent our days in the difficult search for gold.

VOA: special.2009.07.04

Sometimes it's easier actually not touch it to the metal, -- I should have- TA: It's hard to see if it's moving or not.

有时候它更容易不接触金属，我本应该-,助教：很难看到它是否移动了。

麻省理工公开课 - 化学原理课程节选

But at the end of the day, if you move this metal thing aside with your fingers, don't squeeze it too hard.

但是在下课后，如果你用手指触碰这个金属块，不要用力过猛。

哈佛公开课 - 计算机科学课程节选

For Robert Kraft it all started in 1971 on the cold, hard metal benches of a sad-sack football stadium in Foxboro, Mass.

FORBES: Unlikely Dynasty

The film satirizes the behaviour and musical pretensions of hard rock and metal bands.

BBC: Chris O'Dowd to star in Spinal Tap-style series on

Hard rock and metal have been Finland's most successful music export in recent years.

NPR: The Sounds of Finnish Musical Experiments