A mechanically tunable photonic crystal (MTPC) which is composed of muti-layers of dielectric material immersed in air is designed.是什么意思_A mechanically tunable photonic crystal (MTPC) which is composed of muti-layers of dielectric material immersed in air is designed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句