The gold standard material of high grade ore was prepared in this Institute. It was approved and assigned as the first class standard material by the state Supervision Bureau of Technical Quality.

研制了高品位矿石金标准物质，并已获国家技术质量监督局批准为国家一级标准物质。

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High grade ore block often located in winding part of fault in strike and dip or intersection part of faults of NW and NE strike.

富矿段主要产于断裂在走向和倾向上的波状弯曲处以及NW与NE向断裂交汇部位。

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The genesis of shilu iron deposit, which is well-known by its high grade ore, has given rise to much controversy.

海南岛石碌铁矿是我国著名的富铁矿，但矿床成因长期存在争论。

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Copper-market analysts believe that Zaire's high-grade ore could help create a world surplus of copper by the end of the decade, and bring prices down heavily.

ECONOMIST: Zaire