Theoretical calculation in this paper is useful for the design of the air button battery.

本文中提供理论计算方法对扣式空气电池的设计具有实用意义。

youdao

Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.

使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。

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

Plus, for last minute trips like New Years, what could be easier than pushing one button for air, hotels and transfers instead of trying to line them up individually?

FORBES: Best Last-Minute New Year's Eve Destinations

Therefore you're focused on just the most basic movements -- a common one involves jumping in the air, tapping the other button for the downward kick, and then tapping it again to fly backwards.

ENGADGET

To make selections in some parts of the menu, you simply push your hand forward in the air, like pushing an imaginary button.

FORBES: Amid Tablet, 3-D TV Deluge At CES, Gesture Tech Could Be The Next Big Thing