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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Sugar-sweetened beverages were the leading source of liquid calories among study subjects.

在研究对象之中，加糖饮料是液体热量的主要来源。

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

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The bill would allow for the early payment of the winter fuel allowance to people whose homes are not connected to the mains gas grid and whose principal source of fuel is home fuel oil, liquid petroleum gas or propane gas.

BBC: Winter Fuel Allowance Payments Bill

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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