The second was a 20-cent coin made of silver alloy.

第二种硬币是两角的合金银币。

youdao

Smelting test showed that an alloy contained 20% Cr can be produced by shaft furnace with carbon bearing chrome-ore pellets.

热态试验表明，竖炉用含碳铬矿球团可以冶炼出含铬20%的铬铁合金。

youdao

Though there is evidence of its contemporary blue oval by having it ornamented on the 20 "alloy wheels."

尽管有证据显示它的当代蓝色的椭圆形，让观赏它的20“铝合金轮辋。”

youdao

The unit is packaged in a magnesium alloy top-and-bottom case that is 20 times stronger than ABS plastic.

ENGADGET: GammaTech rugged T7Q launches at $2k and up, promptly steals your iPad's lunch money

If your business is selling alloy wheels in Manchester, then you can deliver your adverts to men aged 20-30 who live within 10 miles of the city and like Top Gear and Max Power.

BBC: Technology