雅思写作高分词组整理 trace elements
释义：
trace elements [地化][化学] 微量元素
例句：
Information about dietary variation among community members is derived by analyzing trace elements in human bone.
关于社区成员之间饮食变化的信息是通过分析人体骨骼中的微量元素得到的。
These minerals can be dated by radioactive decay techniques because of the very small quantities of radioactive trace elements they, in turn, contain.
这些矿物可以用放射性衰变技术测定年代，因为它们所含的放射性微量元素非常少。
Spa bath; Spa swimming; Pilot; Trace elements.
矿泉浴；游泳；飞行员；微量元素。
Objective: Trace elements and is closely related to human health.
目的：微量元素与人体的健康密切相关。
Objective:To determine the contents of trace elements in hogwash oil.
目的：测定地沟油中的微量元素含量。
Selenium is one of the trace elements closely related to human health.
硒是与人体健康密切相关的必需微量元素之一。
The organic affinity of trace elements decreases further in anthracite.
到无烟煤阶段，有机态微量元素含量进一步降低。
The Windows are very clean and have undetectable levels of trace elements.
窗体很干净痕迹元素水平低到无法觉察。
It contained high levels of impurities and unsafe levels of trace elements.
它含有高浓度的杂质和不安全的各级微量元素。
Containing 12 vitamins, 17 amino acids and a variety of essential trace elements.
含有12种维生素、17种氨基酸和多种人体必需的微量元素。
More and more people have attached importance to the deficiency of trace elements.
微量元素缺乏症已经越来越多的引起人们的重视。
Due to their prodigious growth rate, their demand for calcium and mineral trace elements is high.
由于其惊人的增长速度，他们的需求是高钙和矿物质微量元素。
The effects of mixtures of trace elements are poorly understood and could cause further health concerns.
至于微量元素混合物产生的影响，人们对此知之甚少，但此类混合物会引发更深远的健康问题。
Your baby is not a lack of trace elements to determine the circumstances, you will not be too worried.
你在确定孩子没有缺乏微量元素的情况下，你就不要太担心了。
Objective: To discuss the contents of trace elements of in zizyphus jujube and big jujube Laoling Shandong.
目的探讨山东乐陵产金丝小枣和大枣中微量元素的含量。
There are also formulae with added trace elements for use with soilless mixes and these are very beneficial.
还有一些肥料里面添加了微量元素，是专门为无土介质设计的，很有用。
Basic geology and geochemistry of water samples helps to predict occurrence of trace elements in groundwater.
对地下水样进行基础地质和地球化学方面的分析，有助于预测地下水微量元素的迁移。
Differences in the concentration of trace elements are related to the climatic conditions and land use of the area.
不同地区地下水的微量元素浓度差异与气候状况、土地利用程度密切相关。
This paper was very important in revealing the action mechanism of trace elements in the occurrence of cancer.
本研究对揭示癌症产生中微量元素的作用机理有着重要的意义。