Damper: both gas flow regulating button and wind board are high grade PP material, connected with 304 stainless steel bar, manually adjust the outside valve knob, control air flow.

气流调节阀：气流调节扭与挡风板均为高密度PP材质，用304不锈钢方棒连接，手动调节外部阀门旋钮，控制气流量。

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The CAM member operably connects a temperature control knob to the thermostat.

凸轮元件把一个温度控制旋钮可操作地连接于恒温器。

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By adjusting the control knob, the second stage reduces the intermediate pressure to the desired delivery pressure.

通过调整控制钮，第二级把中间压力降到需要的输出压力。

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From there, Huen mapped various songs onto different positions of the knob, allowing him to control his playlist by moving it -- a simple, manual interface for selecting music.

ENGADGET

On the current S-Class, the small, domed palm support for the large control knob just ahead of the center armrest flips open on exposed hinges to reveal a keypad.

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