The floatation process for the mixed primary ore is investigated.

研究混合原生锰矿的浮选工艺。

youdao

The laterite gold is generally mineralized near the primary ore or gold-rich bodies.

红土型金矿常产于原生金矿或富金地质体的附近。

youdao

The texture and structure of ore are simple. The mixed ore is main ore type, oxidation and primary ore followed.

矿石结构构造简单，以混合矿为主，其次为氧化矿和原生矿。

youdao

Tata, which mines all the iron ore and coal it needs, now aims to carry out primary steel production close to its iron-ore deposits, and then ship semi-finished steel for finishing close to foreign consumer markets.

ECONOMIST: Why the Tata-Corus deal makes sense for both parties

Nearly 60% of Brazil's exports to China are primary goods, largely soya and iron ore.

ECONOMIST: Brazil's affair with China is going off the boil