微量元素 (wēi liàng yuán sù) — trace element (chemistry)
Definition
Refers to chemical elements that organisms need in very small amounts (e.g., iron, zinc, iodine). A technical term from chemistry and biology, not a casual word.
noun
trace element (chemistry)
Examples
- 微量元素。Rén tǐ xū yào duō zhǒng wēi liàng yuán sù lái wéi chí jiàn kāng.The human body needs various trace elements to maintain health.
- 微量元素，。Zhè zhǒng tǔ rǎng quē fá mǒu xiē wēi liàng yuán sù, yǐng xiǎng zuò wù shēng zhǎng.This soil lacks certain trace elements, affecting crop growth.
- 微量元素。Kē xué jiā zhèng zài yán jiū wēi liàng yuán sù zài hǎi yáng shēng tài xì tǒng zhōng de zuò yòng.Scientists are studying the role of trace elements in marine ecosystems.
Appears in
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