1. metal
They contain small quantities of metals such as platinum, which are used to make jewellery.
Crashes in the early days of commercial jets tended to be caused by technical faults, such as metal fatigue in the airframe or engines.
Acid attacks metal.
My neighbor found a cache of ancient Roman coins using his metal detector.
I bet you'd never heard of a Stroh violin before Tom Waits dug it back up! Anyway, it used a large metal horn as its resonator instead of a wooden box so it could be picked up better by recording equipment before the late 1920s.
The only metal that a metal detector can detect is the metal in another metal detector. That fact was instrumental in my parents' meeting.
Near the door, an elaborate metal robot -- a robot designed to keep away intruders, was standing coldly.
By using four types of metal, specific frequency resonance is suppressed.
Accuracy and finish will become more important than high rates of metal removal for 95 percent of all machining operations.
His friends had told him a lot about that small hut, built roughly with metal parts and crumbling bricks.
Using metal spoons is more environment-friendly than using plastic.
Niektóre metale wytwarzają energię magnetyczną.
Instead of giving the money, that is the normal coin of the realm, which is the phrase that everyone used then, they would give them a token, and this token might be metal, might be wood, might be cardboard.
In other cultures, the balls were filled with earth, grain, bits and pieces of plants, and sometimes even pieces of metal.
If the metal plate terminal of the game cassette is dirty it may be difficult for the game to start when the cassette is inserted into the game console.
2. steel
Despite a shortage of steel, industrial output has increased by five percent.
Steel traps are illegal.
Steel output set a record for two consecutive years.
This steel is stainless.
Building the steel factory was a great enterprise.
Your name was given to us by Mr. Hayashi of Keyo Steel Corporation.
Though he long dominated the steel industry, he never achieved a complete monopoly.
The building will be made of concrete on a steel framework.
Concrete can be reinforced by putting steel bars inside it.
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Steel production of the year was the highest on record.
To the chagrin of many Western composers, steel drums, or steelpans, tend not to be fully chromatic.
Steel is a key industry.
he steeled his heart against her sorrow; he steeled himself for the blow
The game of pinball involves directing a little steel ball onto ramps and into holes with a pair of flippers.