Selenium is a trace element essential to human body.

硒是人体必需微量元素。

Study on trace element of yunnan ginseng - fruit

云南人参果中微量元素的研究

Selenium is an important trace element for human heal th.

硒是一种重要的人体必需微量元素.

Platinum is a powerfully radioactive trace element.

“铂”：非常有辐射力的微量元素。

Selenium is am essential trace element for animals and humans.

硒是哺乳动物和人必需的微量元素。

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。

The results of determining trace element shown Zexie contains 16 kinds of trace elements.

另外，微量元素的测定结果表明：泽泻含16种微量元素。

The existing state of trace element in coal and variation of operation conditions have great effects on the enrichment of trace element in fly ash and bottom slag.

微量元素在煤中的赋存形态和锅炉运行工况的变化影响微量元素在底渣和电除尘器飞灰中的富集。

Objective To determine the trace element content of Herba Epimedii in different habitats.

目的测定不同产地淫羊藿中微量元素含量.

Coal utilization for gasification is an important source of trace element emission.

煤气化是环境中有害微量元素排放的重要来源.