Operating at small gap width would maximize the flux.

另外，小的气隙宽度可得到大的膜通量。

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The width, height, brightness of the screen and the luminous flux, focus of the cineprojector are important factors of cinema auditorium design.

银幕的宽度、挂高、亮度，以及放映机的光通量、焦距等都是电影观众厅设计的重要因素。

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The average flux of the PWM high-speed on-off valve are regulated by the Pulse-Width Modulation theory and it is easy to combine the computer and hydraulic control technology.

高速开关阀采用脉宽调制(PWM)原理来控制其平均流量，极易实现计算机控制技术和液压技术的有机结合。

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