n.铍

Beryllium is a chemical element with the symbol Be and atomic number 4.
铍是一种化学元素，其符号为Be，原子序数为4。
Beryllium is one of the lightest metals and has a high melting point.
铍是最轻的金属之一，具有很高的熔点。
Beryllium oxide (BeO) is an excellent heat conductor used in nuclear reactors.
铍氧化物（BeO）是一种优良的热导体，用于核反应堆中。
The aerospace industry uses beryllium alloys due to their stiffness, lightweight nature, and dimensional stability.
航空航天工业由于铍合金的刚性、轻质和尺寸稳定性而使用它们。
Beryllium copper alloys are known for their non-magnetic and non-sparking properties.
铍铜合金因其无磁性和不产生火花的特性而闻名。
Beryllium is found naturally in minerals such as bertrandite and beryl.
铍天然存在于如绿柱石和硅铍钇矿等矿物中。
Chronic exposure to beryllium dust can lead to a lung disease called berylliosis.
长期接触铍尘埃可能导致一种名为铍病的肺部疾病。
In particle physics experiments, beryllium is used as a target material for producing neutrons.
在粒子物理学实验中，铍被用作生产中子的目标材料。
Due to its low neutron absorption cross-section, beryllium is often used in neutron moderators.
由于铍的中子吸收截面较低，常用于中子减速剂。
The electronic structure of beryllium allows it to form covalent bonds in compounds like beryllium fluoride (BeF2).
铍的电子结构使其能够在化合物如氟化铍（BeF2）中形成共价键。