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
- 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 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。 - This study investigated chemical element concentrations in calcite, calcareous soil and restored plants in a limestone rocky desertification area in Huaxi, Guizhou Province.
对贵州花溪区石灰岩、石灰土及定居植物中化学元素含量进行研究。 - 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。 - It is the discovery of a new chemical element.
它是一种新化学元素的发现。 - We must include this chemical element in the group.
我们必须使组里包括这种化学元素。 - The relationship between Tricholoma matsutake circle spreading and 13 chemical element contents in soil was studied preliminarily.
初步研究了松茸圈扩散与土壤中13种化学元素含量之间的关系。 - 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。 - 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。