The nice thing about it is that we can really have a knob, if you like, which we can control to adjust the rate at which we inject these particles.

非常棒的是我们真的可以得到一个能控制调节粒子注入大气速率的大球体。

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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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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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