diamond

a diamond engagement ring.订婚钻戒

diamond ring,钻石戒指，钻戒

synthetic diamond,人造金刚石；人造钻石

diamond tool,[机]金钢石刀具

diamond saw,金刚石锯；钻石圆锯

polycrystalline diamond,多晶金刚石

diamond bit,金刚石钻头；钻石钻头

diamond wheel,金刚石砂轮；金刚石刀片

diamond necklace,钻石项链

rough diamond,未加工的钻石

diamond powder,金刚石粉（末），钻石粉

diamond grinding wheel,金刚石砂轮

diamond drilling,金刚石钻井

natural diamond,天然金刚石；天然钻石

diamond turning,金刚石车削；菱形光阑

black diamond,黑金刚石，黑钻石

diamond in the rough,未经琢磨的钻石；外粗内秀的人

diamond drill,金刚石钻头，金刚石钻具

diamond cutter,金刚石切割器，玻璃刀

white diamond,白色钻石

diamond sutra,n. 金刚经