... variable gain method: 可变增益法 variable gearing: 变速传动装置 variable geometry nozzle: 可变叶角喷嘴 ...
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variable gearing ratio 可变传动比
variable gearing mechanism 传动比调节机构
infinitely variable speed gearing [机] 无级变速传动机构
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。
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.
经营杠杆计量的是企业经营成本中固定成本而非变动成本所占比重，固定成本比重往往影响企业的经营风险水平。
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