镧

Lanthanum is a soft, silvery-white metal found in the lanthanide series of elements.
氧化镧是一种在镧系元素中发现的柔软、银白色的金属。
The primary use of lanthanum is in the production of neodymium magnets, which are crucial in modern technology.
氧化镧的主要用途是制造钕磁铁，这对现代技术至关重要。
Lanthanum also has applications in nuclear reactors as a coolant due to its high thermal conductivity.
镧系元素由于其高的热传导性，也被用于核反应堆作为冷却剂。
It's worth noting that lanthanum often substitutes for calcium in various chemical compounds.
值得注意的是，镧经常在各种化学化合物中替代钙。
The element lanthanum was discovered by Johan Gadolin in 1792 and named after the Greek word "lánthanein," meaning 'to hide.'
这种元素由约翰·加多林于1792年发现，并以希腊词"lánthanein"命名，意为“隐藏”。
In medicine, lanthanum chloride is used as an imaging agent in diagnostic procedures.
在医学上，氯化镧被用作诊断过程中的显影剂。
Lanthanum's atomic number is 57, making it the fifth element in the lanthanide series.
镧的原子序数为57，它是镧系的第五个元素。
Lanthanum alloys are lightweight and corrosion-resistant, making them suitable for aerospace applications.
镧合金轻质且抗腐蚀，适合航空航天应用。
Lanthanum oxide (La2O3) is a white solid compound that reacts with water to form hydroxides.
氧化镧（La2O3）是一种白色固体化合物，与水反应生成氢氧化物。
The rare earth metal, lanthanum, plays a minor but important role in the production of certain electronic components.
镧这种稀有地球金属在某些电子元件的生产中扮演着小而重要的角色。