Single knob control, easy operation.

单旋扭控制，焊接操作简单。

youdao

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。

youdao

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。

youdao

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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There are indeed fewer buttons around the main control knob for the nav system, but the overall layout does not feel like much of an improvement, despite being more organized than before.

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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