1·The European Commission is considering a list of “critical” minor metals and an announcement, including measures such as stockpiles, is expected later this year.
欧盟委员会(European Commission)正考虑列出一份“关键”稀有金属清单，并预计将于今年晚些时候宣布相关措施，其中包括建立储备。
2·Gold electrodeposits are used for electric coupler for their excellent properties. Gold electrodeposits can be improved in hardness and wear resistance by codepositing with other minor metals.
镀层具有优良的各项性能，采用合金化镀金可进一步提高镀金层的硬度和耐磨性。
3·They are composed of magnetite, Ni-rich metals and Fe-sulfides, with minor phosphate, silicate, and trace amounts of platinum-group element metals.
其中的主要矿物为磁铁矿、富镍金属和硫化物，另有少量磷酸盐、硅酸盐及微量的铂族金属。