In order to enhance the reliability and repeatability of the ferroelectric thin film preparation, the liquid source MOCVD system is designed based on PLC.

为了提高制备铁电薄膜的可靠性和重复性，设计了基于PLC控制的液态源MOCVD系统。

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However, this form of energy requires expensive plants to turn the gas into liquid at source.

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Although the exact mechanism is still not entirely understood, it turns out that illuminating the liquid crystal, applying a voltage across a small region of it, and then turning off the light source causes a small amount of charge to be stored in that region.

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