您要查找的是不是：
- The chemical identification and analysis of extremely small quantities of matter. 微量分析对于极其微量物质的化学成分测定及分析
- METHODS Using literature textual criticism, macroscopic and physical and chemical identification methods to identify Halloysitum rubrum. 方法采用文献考证、性状鉴别和理化鉴别。
- OBJECTIVE:To establish the chemical identification method of bis muth subcarbonte in weishusan. 目的:建立胃舒散中主药碱式碳酸铋的化学反应鉴别方法。
- Macroscopic characters of Halloysitum rubrum were observed, physical and chemical identification of Halloysitum rubrum were established. 观察了脑石的性状特征，建立了脑石的理化鉴别方法。
- RESULTS Macroscopic characters of Halloysitum rubrum were observed, physical and chemical identification of Halloysitum rubrum were established. 结果观察了脑石的性状特征，建立了脑石的理化鉴别方法。
- In the item of chemical identification of Margarita in present drug standards, Only Calcium Carbonate is identified, but amino acids, peptides and proteins and such active constituents are not. 现行药品标准中珍珠的化学鉴别项下只有对CaCO3的鉴别,而无对氨基酸、多肽、蛋白质等活性成分的鉴别。
- Since biomagnification is one of the important criteria for chemical identification in laws, governments worldwide are currently trying to assess the biomagnification and hazards of substances. 为了有效管理众多商用化学品，美、日、欧盟等发达国家都有相关的化学物质管理法规，对已有的化学物质筛选控制，对新型物质进行危害性评估。
- METHODS The original plant identification, macroscopical identification, microscopical identification and physical and chemical identification of the Synurus deltoides were observed. [方法]观察山牛蒡的原植物形态及性状，并利用光学显微镜观察显微结构。
- physical and chemical identification 理化鉴定
- Spectra of Orgonic Compounds and Chemical Identification 有机化合物光谱和化学鉴定
- A reactor is a container for chemical reaction. 反应器是进行化学反应的容器。
- 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。
- 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。
- Macroscopic, physical and chemical identification of Halloysitum rubrum 脑石的性状和理化鉴别
- 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。
- Some chemical compounds can be resolved by heat. 一些化学化合物可以通过加热分解。
