tractors

n.

拖拉机( tractor的名词复数 )；牵引机；（牵引式挂车的）牵引车；拖车头

walking tractor手扶拖拉机

wheeled tractor轮式拖拉机

crawler tractor覆带式拖拉机

tractor plant拖拉机厂

Robot tractors
Tractors and their power units. 3d ed.
Standard Tractors and the Conformal Ambient Metric Construction
Of tractors and men: masculinity, technology and power in a French farming community
Carbon dioxide emissions associated with the manufacturing of tractors and farm machinery in Canada
The effect of urban refuse compost and different tractors tyres on soil physical properties, soil erosion and maize yield
Development and Evaluation of a Semi-active Suspension System for Full Suspension Tractors
Whole-body vibration: Evaluation of emission and exposure levels arising from agricultural tractors
Binswanger, Hans P. The Economics of Tractors in South Asia—An Analytical Review. New York: Agricultural Development Council, and H...
Changes of some physical properties of a clay soil following passage of rubber- and metal-tracked tractors