The scientists envision an array of ferrite rods in a magnetic photonic crystal structure that forms a gateway.The gateway could be opened and closed by controlling the magnetic fields.

科学家们构想了一种在磁光晶体结构中的铁氧体磁棒阵列通道，这通道可以通过控制磁场而打开或关闭。

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The scientists envision an array of ferrite rods in a magnetic photonic crystal structure that forms a gateway. The gateway could be opened and closed by controlling the magnetic fields.

科学家们构想了一种在磁光晶体结构中的铁氧体磁棒阵列通道，这通道可以通过控制磁场而打开或关闭。

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Up from the Hani Rice Terraces, in the mountains above Yuanyang, the water flowing down to irrigate the fields looks crystal clear, and the air is clean.

哈尼水稻梯田位于元阳县的高山之上，从山上流淌下来的灌溉用水如水晶般清澈，空气也非常地清新。

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Materials like this crystal produce these electric fields when they are heated.

BBC: NEWS | Science/Nature | Table-top fusion 'demonstrated'

In summer, fields of wildflowers and crystal-clear rivers are almost as intoxicating as the black diamond trails on Aspen Mountain or the hard-earned majesty of the Highland Bowl in winter.

BBC: Living in: Great cities for outdoor adventures