1)noble metal,贵重金属2)precious metal deposits,贵重金属矿床3)Noble Metal and Heavy Metal Ions,贵重金属离子4)wear-resisting steel containing no noble elements,不含贵重金属的耐磨钢5)noble metal catalytic converter,贵重金属催化剂排气净化器6)precious ores,贵重矿石
用法例句
Weighing requests and equip weighing instrument of the noble metal and the gem;
贵重金属及宝石的称量要求和配备衡器
Study of Thiacalixarene Separation/Preconcentration and Determination of Trace Noble Metal and Heavy Metal Ions with Flame Atomic Absorption Spectrometry;
硫杂杯芳烃分离富集—火焰原子吸收光谱法测定贵重金属离子的研究
Experimental investigation on reducing fine productivity of mining precious ores by blasting;
