| 单词 | polymorph |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔stishovite〕A dense tetragonal polymorph of quartz that is formed under great pressure and is often associated with meteoroid impact.超石英：一种致密的四方形石英矿物，常在高压下生成，并与流星撞击有关美国传统〔wurtzite〕A light to dark brown mineral, (Zn,Fe)S, that is a polymorph of sphalerite, used as a minor ore of zinc.纤维锌矿：一种浅棕色至深棕色的矿物，(Zn,Fe)S，闪锌矿的多晶形，用作低质锌矿石美国传统 |
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