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- Influence of rare eatrth elements on chemical transformation of nitrogen in agricultural soil. 施加外源稀土元素对土壤中氮形态转和有效性的影响。
- Chemical transformation is one of the methods for the preparation of nonaqueous dispersion(NAD). 采用化学转化法将水乳液转化为非水乳液是制备非水分散体的一种方法。
- Use parallel automated synthesis or combinatorial trial-and error reactions to improve on a chemical transformation in an evolutionary manner. 用平行的自动的合成方法或组合试探反应来逐步地提高化学反应的转化率。
- Chemical transform items including phosphorus adsorption and precipitation action are considered in the solute mo... 在传统的溶质运动模型基础上添加化学转化项形成了具有磷的反应特点的溶质运动模型。
- Environmental chemistry is an intersectant subject by environmental science and chemistry.Its core problem is to study the chemical transformation and effect of chemical pollutant in environment. 环境化学是环境科学与化学的交叉学科，它的核心问题是研究化学污染物在环境中化学转化和效应；
- A couple of enzymes catalyse the chemical transformation from tyrosine to the resulting pigment.The rate of activity of the enzymes is controled through receptors in the cell membrane. 酶通过催化作用把酪氨酸转化为色素，而酶的活化力受到细胞膜的影响。
- The activity is not destroyed by either physical changes of state or chemical transformations. 这些活性不会因为物理状态和化学成分的改变而受到破坏。
- The most important exothermal reactions in the crust can be expected from the chemical transformations of sulfides. 地壳中能够料想到的最重要的放热化学反应是硫化物的化学转变。
- Wetlands have unique biogeochemical cycles with many chemical transformations and chemical transport processes that are not shared by many other ecosystems. 摘要湿地有其独特的生物地球化学循环，其间许多化学迁移和转化过程不为其它生态系统所共享。
- Then, several chemical transformations occur: the glycine forms a chemical bond with the serine, forming a new closed ring, which then spontaneously dehydrates. 然后，几个化学变化发生了：氨基乙酸与丝氨酸成键，生成环状产物，接着脱水。
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- Instead of burning coal, the Wabash River plant chemically transforms it in a process called coal gasification. 与燃煤有所不同，沃巴什电厂运用化学方法将煤进行气化。
- The chemical symbol for copper is "Cu". 铜的化学符号是Cu。
- We are doing a chemical experiment. 我们正在做化学实验。
- Using a five step process, the wood is chemically transformed into hydroxyapatite, the material forming the inorganic part of bone. 使用五个步骤，木材的化学结构转化为羟基磷灰石,该物质是形成骨无机物的一部分。
- My major is the subject of chemical engineering. 我的专业是化学工程学。
- Ammonia is a chemical substance. 氨是种化学物质。
- A chemical derived from petroleum or natural gas. 石油化学制品从石油或天然气中提炼出的化学产品
- Beware how you handle the toxic chemical. 小心处理有毒的化学药品。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
