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变速箱 英语是gearbox 还是transmission

来源:学生作业帮 编辑:作业帮 分类:英语作业 时间:2024/05/21 14:43:51
变速箱 英语是gearbox 还是transmission
应该是gearbox,transmission所指范围更大.以下解释很清楚.
Transmission (mechanics) From Wikipedia
A machine consists of a power source and a power transmission system,which provides controlled application of the power.Merriam-Webster defines transmission as:an assembly of parts including the speed-changing gears and the propeller shaft by which the power is transmitted from an engine to a live axle.Often transmission refers simply to the gearbox that uses gears and gear trains to provide speed and torque conversions from a rotating power source to another device.
In British English the term transmission refers to the whole drive train,including gearbox,clutch,prop shaft (for rear-wheel drive),differential and final drive shafts.In American English,however,the distinction is made that a gearbox is any device which converts speed and torque,whereas a transmission is a type of gearbox that can be "shifted" to dynamically change the speed:torque ratio,such as in a vehicle.