In fact , japanese imports of certain key chinese rare earths , including the oxides lanthanum and cerium , actually rose in 2010 from the previous year .
事实上，2010年日本从中国进口的某些关键稀土元素，包括镧和铈的氧化物实际上较前一年有所增加。
Global demand for materials such as lanthanum and neodymium was surging as the world 's appetite for hybrid cars , wind turbines and ever-faster phones with better screens increased .
随着混动汽车、风力涡轮机和速度越来越快、屏幕越来越好的手机需求增加，镧、钕等材料的需求出现井喷。
Rare earths are 17 chemically similar metallic elements such as europium , yttrium and lanthanum that have unique magnetic , optical and other properties crucial for miniaturisation , lasers and energy efficiency .
A kilogram of lanthanum oxide -- used in oil refining and hybrid vehicles -- now fetches just us $ 13 a kilo , compared with an average us $ 104 a kilo last year .
