必需元素

Using the atomic absorption law examination essential element copper, the zinc, the calcium, the magnesium, the hard content, the anode dissolves the voltammetry examination toxic element blood lead content, and carries on the comparative analysis with the normal comparison group.

应用原子吸收法检测必需元素铜、锌、钙、镁、铁含量，阳极溶出伏安法检测毒性元素血铅含量，并与正常对照组进行比较分析。

Magnesium is a component of the chlorophyll molecule, photosynthesis and serves as a cofactor in most enzymes.

镁是合成叶绿素和光合作用的必需元素，也是活化多种草坪酶的必要元素。

B is the important element of tobacco,having an important on the growth and quality,if B is undersupply or excess , the tobacco physiological function destroied.

硼是烟草生长的必需元素，对于烟草的生长和品质有很重要的影响，硼素供应不足或是过剩都会引起烟草生理机能失调，品质下降。

Fluorine is a necessary element for life of human and animals.

氟是人体和动物的必需元素之一，环境中的氟含量出现异常，往往会通过食物链的作用，引起人畜的氟中毒病症。

Phosphorus is a necessary macronutrient for plant growth and development.

磷是生命的必需元素之一，在作物的生长发育中起着重要的作用。

Magnesium is one of the elements that is essential for the human body.

镁是人体必需元素之一。

Se also is one of essential elements in life.

硒同时也是生命的必需元素之一。

The physicochemical properties, fatty acid composition and mineral elements of Viburnum cylindricum seed oil were determined. The results showed that 20 kinds of fatty acids in the Viburnum cylindricum seed oil were identified, in which the main components were oleic acid (33.34%), 8,11-octadecadienoic acid (28.24%) and palmitic acid (22.55%); the seed oil contained 6 kinds of essential mineral elements including Ca, P, Mg, Fe, K and Mn, and their contents were in the reasonable range of body requirement.

测定了水红木油的理化指标；用GC/MS法测定了脂肪酸组成及含量，共检出20种脂肪酸，主要成分9-十八碳烯酸占33.34%，8，11-十八碳二烯酸占28.24%，十六烷酸占22.55%，3种脂肪酸共占84.13%；用ICP-OES法测定了矿质元素的种类和含量，检出的Ca、P、Mg、Fe、K、Mn 6种矿质元素均为人体必需元素，含量均在人体所需合理范围内。

As well as nucleic acid, amino acid, gland glucosidal, each kind of enzyme and its coenzyme, polysaccharide synthesis essential element.

富含有机酸和生物促长剂，提供可直接被草株吸收的N、P、K等营养形态，以及核酸、氨基酸、腺苷、各种酶及其辅酶、多糖合成的必需元素。

For comparative research on trace element spectral diagram of animals which are different in Taxology and productive performance,the hair and blood samples were taken from 10 milking cows and 10 bile—draining bears.

本研究采取产奶期奶牛和胆汁引流黑熊的毛发和血液样品，测定其必需微量元素Mn、Fe、Co、Cu、Zn和非必需元素Cd、Pb的含量，建立所测微量元素图谱并进行比较。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。