earth metals 是什么意思

	1.	Of precious metals , of rare - earth metals , of 服装饰品，编织或钩织95 , 462
	2.	Inner mongolia baotou wanbao rare earth metal co . , ltd 内蒙古包头市万宝稀土金属有限公司
	3.	Baotou wanbao rare earth metal co . , ltd 内蒙古包头市万宝稀土金属有限公司
	4.	Rare - earth metals and their oxides - determination of ignition loss - gravimetric method 重量法测定灼减量
	5.	Property investigation of a kind of three - way catalyst containing rare earth metal 一种富稀土型三效催化剂的性能考察
	6.	Rare - earth metals and their oxides determination of thorium content arsenazo spectrophotometric method 分光光度法测定钍量
	7.	Standard test method for total rare earth metals in paint driers by edta method Edta法涂料催干剂中稀土金属总量的标准试验方法
	8.	Alkaline earth metals 土类金属
	9.	Exploration and research of miniaturization of property experiment of alkaline - earth metal compunds 碱土金属化合物性质实验的微型化研究
	10.	Determination method for non - rare earth elements in mixed rare earth metals and compounds 法测定混合稀土金属及其化合物中的11个非稀土元素

earth metals是什么意思