名词
中文翻译：低品位矿物
同义词：
['low-grade mineral', 'low-grade ore例句：1. The mine is producing low-grade minerals.（这个矿正在生产低品位矿物。）2. Low-grade minerals are often more valuable than high-grade ones.（低品位矿物通常比高品位的更有价值。）3. Mining companies are looking for ways to extract more low-grade minerals from the earth.（矿业公司正在寻找方法从地球中提取更多的低品位矿物。）']
例句：
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1. The mine is producing low-grade minerals.
这个矿正在生产低品位矿物。
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2. Low-grade minerals are often more valuable than high-grade ones.
低品位矿物通常比高品位的更有价值。
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3. Mining companies are looking for ways to extract more low-grade minerals from the earth.
矿业公司正在寻找方法从地球中提取更多的低品位矿物。