Metals invariably trade and therefore are priced in terms of weight: tons, pounds, ounces, etc.

在各种各样金属的交换中，它们的价格用重量来表达：吨，磅，盎司……等等。

youdao

Because of their unique surface, each medal is struck with 12 dies nine times with 1,900 tons of pressure, the weight of more than The native designs were laser-engraved on each medal.

VOA: standard.2010.02.16

Heavy duty trucks are generally defined as those with a gross vehicle weight of 15 tons or more.

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It's unusually large, more than 20 feet tall, with a weight of at least 20 tons.

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"We don't like heart patients doing tons of heavy weight lifting coupled with cold weather, " says Pomerantz, whose home of Rochester averages about 7 feet 8 inches of snow each year.

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