单词：fluorspars
[网络] 荧石；萤光石；氟石粉
单词：fluorspars 相关文章
Iranian President Mahmoud Ahmadinejad, left, waves to the media during his departure ceremony as he leaves Tehran's Mehrabad airport, while accompanied by Vice-President Mohammad Reza Rahimi (file photo) Iran inaugurated part of what it said is a new
VOA标准英语2010年(八)月
MICHEL MARTIN, HOST: Philadelphia is ending a major contract with Immigration and Customs Enforcement. Federal immigration agents have long had access to an arrest database maintained by local authorities there. But activists and now top city officia
2018年NPR美国国家公共电台7月
Iran is hosting a international conference on its natural gas exports Saturday and Sunday in Tehran. Organizers say the meeting is aimed at developing Iran's rich natural gas sector. Iran is under international sanctions over its nuclear program and
VOA标准英语2008年（十月）
Nekron's dark pages proclaimed the worst Of all the known prophecies Erian's book, the only possible way to stop it Had to be found The hour had come to answer The angels' last desperate call ARCANA MALA DICTA ARCANA MORTIFERA AD GLORIAM INFLAMMATUS
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LONDON, Aug. 5 (Xinhua) -- Usain Bolt set a new Olympic record of 9.63 seconds as he won the 100 meters gold medal on Sunday night. Bolt finished ahead of fellow Jamaican, Yohan Blake, who finished in 9.75 and Justin Gattlin, who ran 9.79, one hundre
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Science and technology 科学技术 Navigation 航海 Crystal gazing 水晶球观海术 A mineral found in a shipwreck was an ancient form of compass 在沉船里发现的矿石是古代的一种指南针 THIS may look like a nondescript lump of rock
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