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It adjoins to pyrane oxygen and it possesses the benzene ring which is joined to the para substituent by the both meta position, photochromic condensation nahutopiran
It adjoins to pyrane oxygen and it possesses the benzene ring which is joined to the para substituent by the both meta position, photochromic condensation nahutopiran
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机译:它与pyr氧相连,并具有苯环,该苯环通过两个间位键与对位取代基连接,即光致变色缩合萘并吡喃
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摘要
It adjoins this invention, to pyrane oxygen and it possesses the benzene ring which is joined to the para substituent by the both meta position, photochromic condensation nahutopiran, and the use in, the plastic of all types of especially ophthalmology application it regards.
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