磨钻的使用是必不可少的。

The use of the power drill is indispensable.

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磨钻、骨凿、刮勺和拉钩；

The invention also comprises an abrasion drill, a bone chisel, a spatula and a drag hook.

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本月初，坎贝尔收到命令，要求其在荷兰国际刑事法庭作证，证明曾收到泰勒赠送的粗磨的血钻。

Earlier this month, Ms Campbell was ordered to testify at the International Criminal Court in the Netherlands over allegations that she received a rough-cut diamond as a gift from Mr Taylor.

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