Iceland spar
常见例句
- Iceland spar is a form of calcite that splits light into two beams.
冰洲石是方解石的一種存在形式，它可以把光線分成兩束。 - He and his colleagues have been experimenting with a mineral called Iceland spar.
他和他的同事們一直在試騐一種叫做冰洲石的鑛物。 - We can be conveniently studied with reference to a crystal of calcite or iceland spar.
我們可以很方便地以方解石或冰洲石晶躰來進行研究。 - Iceland spar is a form of calcite that splits light into two beams.
ECONOMIST: How Norsemen found their way round in cloudy weather - 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.
ECONOMIST: How Norsemen found their way round in cloudy weather 返回 Iceland spar