Power and Gearing device: Various kinds of motor, reducer, variable-speed motor, lift machine, protection device, and electronic control system etc.
动力与传动装置：各种类型电动机、减速机，变速机、电梯主机，保护装置，电控系统等。
2
Operating gearing is a measure of the extent to which a firm's operating costs are fixed rather than variable as this affects the level of business risk in the firm.