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- Experiment research on synthesis of additive by chemical conversion of lignin sulfonate introduced. 论述了木质素磺酸盐化学改性制取水煤浆添加剂的试验研究。
- Influences of factors such as pretreat ment, chemical conversion film on the quality of coating were an alyzed. 分析了前处理、化学转化膜等因素对涂膜质量的影响。
- The microorgan-isms employed include mainly chemical conversion bacteria,phototropic bacteria and alga. 所利用的生物体主要包括：化学转化细菌、向光性细菌和藻类。
- The reaction products are mixtures of Ni(OH)2.AIOOH and AIF, formed by hydrolysis, hydration and chemical conversion reactions. 其反应产物主要由水合Ni（OH）2、AlOOH、AlF3组成，是水解沉积、水化反应和形成化学转化膜的结果。
- Supercritical water(SCW) is a novel chemical reaction medium.High efficiency of chemical conversion of hydrocarbons is provided in SCW. 超临界水是一种新型反应介质,烃类在超临界水中化学转化效率高。
- Supercritical water (SCW) is a novel chemical reaction medium.High efficiency of chemical conversion of hydrocarbons is provided in SCW. 摘要超临界水是一种新型反应介质，烃类在超临界水中化学转化效率高。
- The wet process includes electroplating,electrolessplating,anodizing chemical conversion etc.The dry process includes PVD、 CVD、 Spray coating etc. 湿法有电镀、化学镀、阳极氧化及化学转化等。
- Biotransformation: Biotransformation is the chemical conversion of substances by living organisms or enzyme preparations. 生物：生物转化是化学转化的物质是由活的生物体或酶制剂。
- These large pools of ammonia are detrimental to seedling growth and are very susceptible to gaseous loss by volatilization before chemical conversion back to the ammonium and nitrate forms. 这些氨的大量存在对幼苗生长产生危害，同时也很容易在转化为铵态氮和硝态氮之前挥发损失。
- Fundamental topics include why and when one may choose to use biological systems for chemical conversion, considerations for using free enzymes versus whole cells, and issues related to design and development of bioconversion processes. 基本的主题包括:为何及何时可能选择使用生物系统来进行化学转化、考量使用分离酵素或完整细胞，以及与设计和开发生物转化程序相关的议题。
- In order to enhance the anti-corrosive performance of ZK60 magnesium alloy,the chemical conversion coatings on ZK60 magnesium alloy obtained from phosphate or stannate solutions were studied. 为了提高ZK60镁合金的耐腐蚀性能,利用磷酸盐溶液或锡酸盐溶液,考察了在ZK60镁合金上形成磷酸盐或锡酸盐化学转换膜的工艺条件及膜层的耐蚀性能。
- My real reason for being is that I am capable of baffling, almost miraculous, chemical conversions. 我存在的真正原因是我能完成惊人的，几乎是奇迹般的化学转化工作。
- chrome-free chemical conversion coating 无铬化学转化
- chromium- free chemical conversion 无铬化学转化
- 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。
