valuable substances翻译
valuable substances的基本解释
读音: 美: 英:
有价值的物质：指具有一定经济或实用价值的物质，如黄金、白银、石油等。
例句
There are numerous chemical components in tobacco, and many of them are valuable substances with biological activity.烟草化学成分多种多样，其中许多都是具有一定应用价值的生物活性物质。Plastic has become synonymous with cheap and worthless, when in fact those chains of hydrocarbons ought to be regarded as among the most valuable substances on the planet.塑料成为便宜和毫无价值的同义词，事实上这些碳链化合物理应是地球上最有价值的物质。
Glycerin is one of the most versatile and valuable chemical substances known to man.甘油是最宝贵的人才是人类已知的化学物质。
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