用等离子体发射光谱法测定了稀土铌钽矿中的稀土元素和钍量。
Rare earth elements and thorium in RE-Nb-Ta ores were determined by inductively coupled plasma-atomic emission spectrometry (ICP-AES).
实验研究了难分解铌钽矿在高浓度氢氧化钾溶液中浸出过程的机理。
The leaching mechanism of niobium from a refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.
残积层钽铁矿：残积层钽铁矿发现于由碎片和小鹅卵石成分的碎矿中。
Eluvial tantalite: eluvial tantalite is found in rubble consisting of fragments and pebbles of varied composition.
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