harmful trace elements
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美
- 有害微量元素
双语例句
- This "could be due to nonessential, potentially harmful trace elements contained in zinc supplements, such as cadmium, a known carcinogen," the researchers said.
研究人员说，这可能归因于存在于锌补充剂中的非必需的潜在有害微量元素，例如致癌物质镉。 - Results of the project will provide scientific proof for pollution control of trace hazardous elements in the UCG field sites.
项目研究成果为煤地下气化工程中有害微量元素的污染控制提供了科学依据。
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