文中还对不同元素化合物的改性机理作了初步探讨。
The mechanism of modification by different compounds are briefly discussed.
摘要杂化轨道理论是大学无机化学、结构化学课程的重要内容，是后续元素化合物学习的基础。
Abstract Hybrid orbital theory is an important content of inorganic chemistry and structural chemistry in college text book, and it is the basis for further study of element compounds.
本文结合元素化合物知识教学的意义，分析九年级化学实验教科书元素化合物知识的特点，提出时元素化合物知识教学的要求和方法。
The paper analyses the significance and character of the teaching of knowledge about element compounds in the experimental Chemistry textbook for Grade 9.
水是含有氢元素和氧元素的化合物。
Water is a compound containing the elements hydrogen and oxygen.
水是含有氢元素和氧元素的化合物。
Water is a compound containing the elements of hydrogen and oxygen.
在这些情况下，关于生命的问题根本无从谈起，任何稳定的元素或化合物都不可能形成。
The question of life in these situations never came up, it was impossible for any stable elements or compounds to form.
但盐和几十种含有钠的化合物——盐里的一种元素，与高血压有关——在食品杂货店里从这一头到另一头的加工食品里无所不在。
But salt and dozens of compounds containing sodium - the element in salt linked to hypertension - have become omnipresent in processed foods from one end of the grocery store to the other.
不同的元素或化合物吸收并释放不同颜色的光波，通过对一个恒星的光谱进行研究，我们能够推测它可能的成分。
Different elements or compounds absorb and emit different colors or wavelengths of light, and by studying a star's spectrum, one can divine what its composition might be.
“共晶”是指一种元素或者化合物的组合，它可以在比任一成分单独时的凝固点更低的温度下保持液态。
"Eutectic" refers to a mix of elements or compound that remains liquid at lower temperature than either of its components does alone.
不同元素的原子，以简单的整数比化合成化合物。
Atoms of different elements combine in simple whole number ratios to form compounds.
无机化合物是由诸如硫、磷、铁、钾、钠和钙等元素组成。
Mineral compounds are made of elements such as sulphur, phosphorus, iron, potassium, sodium, and calcium.
地下水中的微量元素含量远远超过了其它地下水污染物——如硝酸盐、杀虫剂和挥发性化合物(VOCs)中的含量标准。
Trace elements in groundwater exceed human health benchmarks at a rate that far outpaces most other groundwater contaminants, such as nitrate, pesticides, and volatile organic compounds (VOCs).
从生化角度讲，碳水化合物是一个含有碳，氢，氧元素的简单化合物。
On a biochemical level, a Carbohydrate is a simple fusion of carbon, hydrogen and oxygen molecules.
这也解释了为什么时间久了这些填充物就显得暗淡无光，而这种化合物是无法被人体吸收的，也就意味着它不会像汞元素那样对人体造成损害。
Which explains why fillings dull with age. And the compound isn't absorbed by the body, which means it can't affect the body the way elemental mercury can.
在我们的星球上，哺育生命的都是些非常普通的元素。首先是烃，组成生命最基本的化合物之一，它仅仅由碳和氢两种化学元素组成。
The elements that give rise to life are hardly unique to our planet.Hydrocarbons, the basic molecules from which known life is built, are made of nothing but hydrogen and carbon.
从那以后，护发素产业蓬勃发展，并且护发产品开始融入氨基化合物、硅元素、脂肪醇等物质。
Hair conditioning industry has largely developed since then, and hair care products began to include ammonium compounds, silicon, fatty alcohols, and so on.
真正让人意想不到的是，他们在研究中发现了基本元素在各个不同加工阶段的形态，包括最简单基础的分子和最复杂的化合物。
What was unexpected, however, was that they saw all the materials in various stages of development, from their simplest forms to their most complex ones.
在这些情况下氮不会是可用的对于同其他元素结合，为了形成化合物和形成生命的建筑模块的链条。
Under these conditions the nitrogen would not be available to bond with other elements in order to form the compounds and chains that form the building blocks of life.
碳是一种元素，二氧化碳是一种化合物。
碳是一种(化学)元素，而二氧化碳则是一种化合物。
一般情况下不同其它元素或化合物反应。
It will not react with other elements or compounds under ordinary conditions.
由两种元素生成的化合物是耐火材料的主体。
Chemical compounds made binary elements are main body of refractory materials.
当两种或两种以上的元素化合形成化合物时，发生化学变化。
When two or more elements combine and form a compound, a chemical change takes place.
化合物包含两种或更多的化学元素。
一些元素得名于它们所来自或归属于的化合物。
Some elements are named after the compound that they came from, or some attribute of it.
在本论文中，所有化合物都是以该比例的元素态反应物在825c的温度下合成。
In this dissertation, the title compounds were synthesized at 825c by stoichiometric ratios of elements.
镁是人体营养的一个重要元素，也是在碳水化合物代谢中的和叶绿素中的辅助因子。
Magnesium is an essential element in human nutrition; it is the cofactor in enzymes of carbohydrate metabolism and in chlorophyll.
碳是元素，而二氧化碳是化合物。
通常把水看作两种元素的化合物。
Water is usually considered as a compound of twelve elements.
通常把水看作两种元素的化合物。
Water is usually considered as a compound of twelve elements.
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