Abundance
例子
The region is known for its abundance of natural resources.
该地区以其自然资源的丰富而闻名。
02
丰度, 浓度
(in chemistry) the relative amount of an element present in the Earth's crust, expressed as a percentage of total crustal mass or in parts per million
例子
Scientists measured the abundance of silicon in various rock samples.
科学家测量了各种岩石样本中硅的丰度。
03
同位素丰度, 丰度比例
(in physics) the proportion of atoms of a specific isotope of an element relative to the total number of atoms of all its isotopes
例子
Scientists measured the abundance of uranium-235 in the sample to determine its suitability for reactor fuel.
科学家测量了样品中铀-235的丰度，以确定其作为反应堆燃料的适用性。
词汇树
overabundance
abundance
abund
