Iceland SPAR is a form of calcite that splits light into two beams.
冰洲石是方解石的一种存在形式，它可以把光线分成两束。
Several centuries underwater have rendered the Alderney crystal opaque, but Dr Ropars and his team are now examining it, and believe it may be Iceland SPAR.
在海底经历了数百年之后，这些奥尔德尼晶体变成不透明物了，但是Ropars博士和他的团队正在对这些晶体进行测试，并坚信它们也许就是冰洲石。
He and his colleagues have been experimenting with a mineral called Iceland SPAR.
他和他的同事们一直在试验一种叫做冰洲石的矿物。
We can be conveniently studied with reference to a crystal of calcite or Iceland SPAR.
我们可以很方便地以方解石或冰洲石晶体来进行研究。
An industrial television camera system is used to monitor and record the cutting process of Iceland SPAR.
利用工业电视摄像系统对冰洲石的切削过程进行观察和记录。
Dr Ropars has shown that a piece of Iceland SPAR is sufficient.
Ropars博士已经证实，这个极化过程只要一片冰洲石就足以完成。
Dr Ropars has shown that a piece of Iceland SPAR is sufficient.
Ropars博士已经证实，这个极化过程只要一片冰洲石就足以完成。
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