"Platinum" is a powerfully radioactive trace element.

“铂”：非常有辐射力的微量元素。

For trace element analysis, storage of organic solvents.

用于痕量元素分析，存储有机溶剂。

Returns a string representation of this stack trace element.

返回当前堆栈跟踪元素的字符串形式。

Selenium is a kind of necessary trace element to living beings.

硒是生物的一种必需微量元素，它与工农业生产及人类健康关系密切。

Trace element Zn in 86 children was determined and investigated.

对86例儿童微量元素锌水平进行了调查研究。