falling film

We find that the waveform and the pulse width of the ultrasonic pulse are determined by the thickness of the PVDF piezoelectric film transducer, the falling time of the step-function voltage, the transducer backing and the shape of the acoustic propagation medium.

实验结果表明，声脉冲的波形和脉冲宽度取决于PVDF压电膜的厚度，阶跃电压的下降沿宽度，以及背衬材料和声传播媒质的形状等多个因素。

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The falling film absorption heat transfer-lithium bromide surface of vertical tubes is experimentally studied.

溴化锂水溶液降膜吸收是目前溴化锂吸收式制冷研究的热点之一.

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This paper introduces the structure, working principle, process flow of inner circulating falling-film molecular distillation equipment.

主要就内循环降膜式分子蒸馏内循环设备的结构 、 工作原理 、 生产工艺流程作简明阐述.

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A new-style of gas-liquid double-loop WFGD reactor with falling film cross-flow scrubbing, is proposed.

提出了一种新型横向冲刷 式 双循环降膜湿法脱硫方式,研究了串联给浆工况主要运行参数对脱硫效率的影响规律.

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The film opened to healthy box office receipts before rapidly falling off.

这部影片的票房收入开始的时候持续上涨，但是后来急剧下降。

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Liquid distributor is the key part of falling-film evaporator.

液体分布器是降膜式蒸发器的关键部件.

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The falling film generator is applied in the lithium bromide absorption chiller and heat pump.

降膜式发生器在溴化锂吸收式制冷机与热泵中得到了一定的应用.

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The experimental also show that the evaporator of fulled liquid type that of falling film type.

从实验结果看满液型蒸发器比降膜型蒸发器更具优点.

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The method that alcohol waste is concentrated in falling film plate evaporator, is proved to be successful in practice.

用板式降膜蒸发器蒸发浓缩酒精废液的方法；经生产实践证明，已取得初步成功。

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The film opened to healthy box office receipts before rapidly falling off

这部影片的票房收入开始的时候持续上涨，但是后来急剧下降。

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Application of a New Type Plate Falling-film Evaporator in Alumina Production

新型板式降膜蒸发器在氧化铝生产中的应用

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Study on the heat transfer performance of spray falling film evaporator with T-shaped fin plates.

T 型翅片板喷淋式降膜蒸发器传热性能研究.

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The structure, working principle and process of the inner circulating falling-film molecular distillation equipment were introduced.

介绍了一种新型脱低沸物设备 —— 内循环降膜式分子蒸馏设备的结构 、 工作原理及生产工艺.

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