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- Ammonia is a very reactive chemical. 氨是很活泼的化合物。
- Perchlorate, a highly reactive chemical that can occur naturally in arid areas such as Chile's Atacama Desert, was detected in two soil samples analyzed by Phoenix's wet-chemistry laboratory. 过氯酸盐是极容易发生反应的化学物质,自然界中存在于像智利的亚他加马沙漠这样的乾燥地区,凤凰号的湿式化学实验室在分析两份土壤样本时侦测到这种学物质。
- The DNA in all organisms is under constant attack from highly reactive chemicals and radiation, and errors are often made when it is copied. 所有生物体中的DNA都受到高度活性的化学与放射物质的不断攻击,并且在DNA复制时常常出错。
- PosiSeal PS#3 is a colorless, odorless solution of specialized reactive chemicals that penetrate concrete surfaces to seal, densify and harden the material. 3是无色无味的专业化学药剂.;通过对混凝土表面的渗透;可以起到密封;密实;以及强化混凝土的功效
- The thesis focused on reactivehazards of reactive chemicals and dangerous processing of preparation, such asorganic peroxides and the preparation processing of presulfurized oil. 本文以有机过氧化物及预硫化油生产工艺为例,研究了活性物质和危险生产过程的活性危害。
- The microfluidic system subjects nanoliter volumes of liquids taken from the initial feedstock to reactive chemicals in various mixing ratios to determine the best conditions for growing protein crystals. 从最初原料中只取1奈升的液体,跟不同比例化学试剂混合反应,就可以用微流体系统决定出培养蛋白质晶体的最佳条件。
- Not readily reactive with other elements; forming few or no chemical compounds. 惰性的与其它元素反应不活泼的; 不能形成或很少能形成化合物的
- 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
- any of a class of highly reactive chemical compounds; used in making resins and dyes and organic acids. 一类高活性有机化合物,用于制造树脂、染料和有机酸。
- 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。