Опубликовано в "Бизнес, Бизнес", язык - English. 13 страниц.
Control Foot Switches is any of a number of different types of switches operated by the feet. It can either work in a simple binary manner, with only an on and off setting, or it can work on an increasing scale. The one that most adults are familiar with is the gas pedal of a car. Еще
