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。
But he's not dabbling in the trade in the shops and boutiques - he's digging around in the sidewalk cracks for fractures and splinters of the precious metals and gems.
可他的工作不在商铺和精品店里——从人行道的缝隙里找寻贵金属和宝石碎屑才是他的致富之道。
The company handles the domestic and international trade of ferrous metals, mineral products rare earth products and cable materials.
公司主营有色金属、矿产品、稀土产品及电缆材料的国内国际贸易业务。
While both gold and silver were slightly firmer, the precious metals remained mostly range bound in quiet trade conditions.
黄金与白银虽然都小幅上涨，但贵金属在淡静的市况中依然基本区间盘整。
These standards can't simply be regarded as trade barriers, as many are related to safety, such as those for heavy metals or pesticide residues.
我们不能简单把这些标准视为贸易壁垒。其中许多标准都与健康有关。例如一些中草药中含有重金属物质或杀虫剂。
There are serious pollution problems in the scrap trade, among which the biggest risk is invisible pollution such as heavy metals and chemicals in wastes.
废品回收存在很大的污染问题，而最大的风险是看不见的污染，如废品中的重金属和化学品。
There are serious pollution problems in the scrap trade, among which the biggest risk is invisible pollution such as heavy metals and chemicals in wastes.
废品回收存在很大的污染问题，而最大的风险是看不见的污染，如废品中的重金属和化学品。
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