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朱砂[Cinnabar] [2005-9-6]
iamet 发表在 ℃〖化学〗
| | Cinnabar is the mineral name for mercuric sulfide, symbol HgS. It is the chief ore of mercury, and can occur in veins alone or in masses of shale, slate, or limestone. |
学好数理化，走遍天下都不怕！ | |
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