金刚石与煤在化学上是同类的。

Diamond is chemically allied to coal.

煤炭在化学上与金刚石属于同类。

Coal is chemically allied to diamond.

泉州万达金刚石工具有限公司。

Quanzhou Wanda Diamond Tools Co. , Ltd.

“金刚石”船，你船显示降落区。

M/V Diamond, you indicate landing area.

分析了白颗粒合成金刚石。

White synthetic diamond grains were studied.

标签类金刚石薄膜红外界面.

Diamond like carbon film infrared interfaces.

精密金刚石砂轮表面磨床

Precision diamond-wheeled surface grinding machine

最硬的金属，钢，金刚石

Adamas(G. &. L. ), the hardest metal, steel, diamond

石墨和金刚石是碳的同素异性体.

Graphite and diamond are allotropes of carbon.

刀具一般都选用优质的金刚石。

Knives are generally selected high quality diamond.