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

• 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。
• 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。
• Formula weight: Sum of the atomic weights of all atoms in a chemical formula.
  式量：化学术语，即某一化学式中所有原子的原子量之和。
• The chemical formula for water is H2O.
  水的化学分子式是h2o。
• 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。
• The abstract may contain the chemical formula which best characterizes the invention.
  说明书摘要可以包含最能说明发明的化学式；
• According to the calculation of chemical formula is a key junior high school chemistry teaching content.
  根据化学方程式的计算是初中化学教学中一个重点内容。
• In order to prepare suitable matrix for subsequent handing and to search after full-water blowing technology, we firstly study simple polyurethane foam using our specific synthesis materials and chemical formula.
  为了探索全水发泡技术和为后续步骤制备适宜的聚氨酯基体，在具体的合成原料和化学配方上，我们首先研究了单纯的聚氨酯硬质泡沫塑料。
• I might compare it with the chemical formula NaCl, Sodium Chloride. It's a stable, necessary compound.
  拿一个化学式来打比方，比如氯化纳，是一种稳定而必要的化合物。
• Nitric acid: Inorganic compound, colourless, fuming, highly corrosive liquid, chemical formula HNO3.
  硝酸：一种无机化合物，无色、冒烟、高度腐蚀性的液体，化学式为HNO3。