必需元素

研究并提示，在高血压组必需元素Ni、V、Co、Cr水平较低；

Results also indicated ; ( 1 ) The levels of essential element Ni , V , Co , Cr were lower in hypertensive group .

如果一个文件完全丢失了，数据已经篡改而无法修复，或在XML文档中缺少必需元素，这时可以中断用户的工作。

If a file is completely missing , data is garbled beyond recovery , or an essential element is absent in an XML document , that is when you interrupt your user 's work .

Cd对于人体和动植物都是非必需元素，且有很强的毒性。

Cd is non-essential element for humans and animals as well as plants , and is highly toxic to them .

结果Cd、Co元素未检出，Zn、Cu、Mn、Se等人体必需元素较丰富。

The results indicated that Cd and Co did not determined and Zn , Cu , Mn and Se was rich .

在已测定的15种矿物元素中，含有9种人体必需元素，其中Ca、Fe、Mg的含量较高：有害元素Hg、Pb、As及Cd的含量较低。

15 mineral elements had been determined , including 9 essential elements among which the contents of Ca , Fe and Mg were higher .

探讨谷胱甘肽硫转移酶（GST）基因多态与慢性苯中毒患者血清中必需元素的关系。

To study the relationship between essential elements and GST genetic polymorphisms in patients with chronic benzene poisoning .

元素Ca、K、Mg、Fe、Zn等是植物的必需元素，与植物的新陈代谢有着密不可分的关系。

The metal elements , such as Fe , K , Zn etc. , are essential for the growth of the plant and have an inseparable relation with metabolism .

医疗垃圾中含有1.1%～2.1%的氯，氯是HCl和二恶英类物质生成的必需元素。

Medical waste contains 1.1 % ~ 2.1 % chlorine , which is the imperative component of HCl and dioxin .

钾是人体中的必需元素，正常情况下需摄入3g／d，过量摄入钾或缺钾都可能导致疾病的发生。

Potassium is an essential element in human body . It is needed in a normal quantity of 3g / d , overmuch or lack of patassium in human body can lead to illness .

Cd不是生物生长发育过程的必需元素，也是自然界中对生物体危害性最大的重金属之一，连同Hg、As、Cr、Pb被称为污染环境的五毒元素。

Cd is not essential elements for biological growth and development process , considered as the highly toxic heavy metals , Cd along with Hg , As , Cr , Pb are called " SINS of element " of environmental pollution .

该结构（可在./kernel/kmod.c中找到）集合了给定的usermode-helper实例的所有必需元素。

This structure ( which can be found in . / kernel / kmod . c ) aggregates all of the necessary elements for a given usermode-helper instance .

镁元素是铜绿微囊藻生长的必需元素，低镁条件下，铜绿微囊藻不能生存。

Low magnesium conditions , Microcystis aeruginosa can not grow well .

钼是豆科作物固氮酶复合体组成的必需元素。

Molybdenum is an essential element consisting of nitrogenase enzyme complex .

行车女工血清必需元素含量分析

Analysis of the essential elements in serum of female crane workers

汞是有毒、人体非必需元素。

Mercury is known as a toxic and unessential element .

植物体的必需元素之一。

Potassium One of the essential elements in plants .

人体铅负荷与必需元素及酶活性关系的研究近况

Study of Relationship between Human Pb Load with Necessary Elements and Enzymatic Activity

铅对人体必需元素干扰的研究

Studies on the interference of lead to the essential elements of human body

脐血必需元素含量与胎儿畸形的相关性研究

A correlative research between essential elements in umbilical cord blood and fetalis deformans

锌是生物的必需元素之一。

Zn is a necessary element for biology .

镁是人体必需元素之一。

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

大学生必需元素摄入水平研究

Intakes of Essential Elements in University Students

核潜艇舰员6种必需元素摄入量及发中含量的研究

Study on Intakes of Six Essential Elements and Their Contents in Hair of Nuclear-Powered Submariners

形态与浓度不同的硒化合物可能是生物体的必需元素，同时也可能导致中毒。

Different concentrations or different species of selenium may be essential or toxic for organism .

血清必需元素测定中样品预处理方法的探讨

Study on the Sample Treatment for Determination of the Content of Necessary Elements in Serum

目的：探讨儿童必需元素与毒性元素血铅水平的关系。

Objectivel : Discusses the child essential element and the toxic element blood lead level relations .

变应性鼻炎与人体必需元素

Allergic Rhinitis and Body Essential Element

重金属铅不是作物生长的必需元素，而是一种对作物有积累性危害的污染物质。

Lead is not a necessary element to crop growth but a pollutant with accumulation problems .

铁和磷是植物的必需元素。

Iron ( Fe ) and phosphorus ( P ) are essential mineral elements for plants .

磷素是植物生长的必需元素，但由于磷素易固定在土壤中，磷肥的利用率较低。

Phosphorus is the essential element for plant growth , but easily fixed in the soil .