chemical element

英 [ˈkemɪkl ˈelɪmənt]

美 [ˈkemɪkl ˈelɪmənt]

n.  化学元素

化学

英英释义

noun

• any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
  Synonym:element

双语例句

• Neutron Activation Analysis ( NAA) is a valid nuclear analytical technique, whichoccupy an important position in the chemical element analysis.
  中子活化分析是一种有效的核分析技术，在微量和痕量元素分析中占有重要地位。
• Suitable methods were found for the determination of the elements, thus providing a scientific basis for the selection of suitable methods for chemical element analysis in plants.
  本文为植物生态学和植物学中氮元素各种形态含量的分析提供了选择测定方法的依据。
• The chemical element lifted to see to see everything of in front, as if deep in thought, go in toward a restaurant.
  元素抬眼看了看面前的一切，若有所思，向一家饭馆进去。
• Transition element Any chemical element with valence electrons in two shells instead of only one.
  过渡元素及其化合物：价电子处在两个壳层而不是一个壳层里的任何化学元素。
• We must include this chemical element in the group.
  我们必须使组里包括这种化学元素。
• Uranium is a chemical element.
  铀是一种化学元素。
• Making different patterns, each pattern stand a distinct chemical element.
  每一类都有不同的化学性质。
• Rn is dangerous increment that a kind of chemical element whose radio is very strong, long-term contact Rn, is a very low density even to also can make the indoors crowd get the lung cancer.
  氡是一种放射性很强的元素，长期接触氡，即使是很低浓度也可使室内人群患肺癌的危险增加。
• A chemical element is represented by a symbol.
  化学元素用符号来表示。
• Lead is a chemical element that can be used in building construction.
  铅是一种化学物质，可以作为建材使用。