element [ˈelımənt] 名词
1. element:
- element
- (化学)元素
2. element:
- element
- 组成部分
- element
- 要素
- elements of civilization
- 文明的要素
3. element:
- element
- 少量
- element
- 微量
短语，惯用语:
- the elements
- 基本原理
- the elements
- (风雨等)自然力
- the elements
- 坏天气
- brave the elements
- 顶风冒雨
trace element 名词
- trace element
- 微量元素
wild-card element 名词
- wild-card element
- 未知因素
单语范例（未经PONS编辑处理）
In geochemistry, a trace element is a chemical element whose concentration is less than 1000 ppm or 0.1% of a rock's composition.
en.wikipedia.org It is the workhouse of the laboratory and is used for trace element analysis via accelerator mass spectroscopy.
en.wikipedia.org This interpretation is supported by additional trace element data, but is also the subject of debate.
en.wikipedia.org This instrument can allow for greater chemical resolution but can only measure one trace element at a time.
en.wikipedia.org Selenium is a trace element involved in proteins that are antioxidants.
en.wikipedia.org