名词
中文翻译：微量
同义词：
['substance', 'trace element', 'tracer']
例句：
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1.The microne is a small amount of material that can be detected with a microscope.
微量物质是一种可以通过显微镜检测到的少量物质。
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2. The trace element in the soil could affect plant growth.
土壤中的微量元素可能影响植物生长。
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3. The tracer was used to trace the movement of the substance through the body.
使用示踪剂来追踪物质在体内的移动。