您要查找的是不是：
- By stibnite and chemical purification after Featured derived from the black powder. 是由辉锑矿经过精选和化学提纯而得，为黑色固体粉末。
- Pure molybdenum trioxide is produced by wet chemical purification and subsequent calcinations suitable for reduction molubdenum manufacture molybdenum wire and flat. 纯三氧化钼是经湿法化学提纯和焙烧而生产的，适用于还原钼粉，生产钼丝，钼片。
- Study on Chemical Purification of Bentonite 膨润土化学提纯研究
- the formation factor,chemical purification of UDD; 最适宜的炸药成分、配比和生成条件和选取；
- The Desulfurization of Iron Ore through Chemical Purification Process 狐堰山矽卡岩型铁矿化学脱硫工艺的探讨
- Study on chemical purification of phosphate rock used in WPA production 湿法磷酸生产用磷矿化学法净化技术研究
- Keywords malathion;chemical purification;chemical oxidation;steam distillation; 马拉硫磷;化学提纯;化学氧化;水蒸气蒸馏;
- 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。
- 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。
- I am not familiar with chemical terms. 我不熟悉化学术语。
- He devoted his life to chemical research. 他一生从事化学研究。
- He is experimenting with a new chemical. 他正在实验一种新的化学制品。
- The two elements are synthesized by a chemical process. 这两种元素已经化学合成。
