chemical element
英 [ˈkemɪkl ˈelɪmənt]
美 [ˈkemɪkl ˈelɪmənt]
n. 化学元素
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
双语例句
- Analytical topic, the concept chemical element withdraws and makes use of, creativity design speculation and express, complete the end design result.
分析主题，概念元素的提取及运用，创意性的设计构想和表现，完成终极的设计成果。 - 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。 - Isotope: One of two or more species of atoms of a chemical element having nuclei with the same number of protons But different numbers of neutrons.
同位素：一种化学元素的两个或多个类型，它们的原子核具有相同的质子数，而中子数却不同。 - A chemical element is represented by a symbol.
化学元素用符号来表示。 - It's twenty year since the scientist set out on his work of discovering the valuable chemical element.
这位科学家从事发现珍贵化学元素的工作已有20年了。 - EDTA coordination reagent applied widely in coordination titration to determine the chemical element.
EDTA配位剂广泛应用于配位滴定，用于物质中化学成分的测定分析。 - Blue diamonds get their colour from small amounts of the chemical element boron trapped in their crystal structure.
蓝钻石的晶体结构中含有的化学元素硼是蓝色的由来。 - The ancients thought that gold resembled the sun, so they represented this chemical element with a solar symbol.
古代人认为黄金与太阳想象，所以他们用太阳符号来代表这种化学元素。 - 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。 - The spectrometers can assess the composition of the sample by parsing individual wavelengths of light in the plasma, each of which is characteristic of a different chemical element.
这些光谱仪能够剖析等离子体中各种光线的波长（每种波长都属于某种化学元素的特征光谱），确定样品组成。