chemical formula

英 [ˈkemɪkl ˈfɔːmjələ]

美 [ˈkemɪkl ˈfɔːrmjələ]

n.  化学式

医学化学

英英释义

noun

• a representation of a substance using symbols for its constituent elements
  Synonym:formula

双语例句

• Chemical formula: Expression of the composition or structure of a chemical compound.
  化学式：化合物的组成或结构的任何一种表达式的总称。
• The chemical formula for water is H2O.
  水的化学分子式是h2o。
• In the chemical formula, the symbol for oxygen is O; for hydrogen, H.
  在化学公式中，氧的符号是o，氢是h。
• The calculation and significance of individual crystal layer chemical formula of phlogopite-vermiculite interstratified mineral
  金云母-蛭石间层矿物分晶层晶体化学式的计算及意义
• A chemical formula showing the ratio of elements in a compound rather than the total number of atoms.
  表示化合物中各成分的比率而非原子总数的化学式。
• This paper introduces the mineralogical characteristics of the andalusite which include the physical and chemical conditions of the andalusite formation, crystalline structure, X-ray diffraction, chemical composition, chemical formula of crystal and infrared spectrum.
  本文对该矿床红柱石的矿物学特征，包括红柱石形成的物理化学条件、晶体结构、X射线衍射、化学成分、晶体化学式及红外光谱特征等，进行了系统的研究分析。
• Teacher: Donald, what is the chemical formula for water?
  老师：唐纳，水的化学公式是什么？
• The formula for water Teacher: What the chemical formula for water is the?
  水的分子式老师：水的分子式是什么？
• The peroxide anion ( chemical formula O22-) is present in peroxides of inorganic compounds.
  过氧阴离子（化学式为O2-2）存在于无机过氧化物中。
• The molecular structure in the high school chemistry teaching is an essential content, knows the molecular structure regarding the student, thus further understood that molecular the electronic formula, the chemical formula, then the understanding chemical reaction equation has the extremely vital role.
  分子结构在高中化学教学中是必不可少的一个内容，对于学生认识分子结构，从而进一步了解分子化学式、化学反应方程式和化学现象有着极其重要的作用。